English Dictionary — Definitions & Meanings

uber

adj

Informal: extremely, or the ultimate example of something.

ubiquitous

adj

Seeming to be everywhere at once; found absolutely everywhere.

Uday

name

A masculine given name of Sanskrit origin, meaning "sunrise" or "rising."

udder

noun

The milk-producing organ hanging beneath cattle, goats, sheep, and similar animals.

udo

noun

Japanese spikenard, a tall Asian plant whose blanched young shoots are eaten as a vegetable.

udon

noun

A thick, chewy Japanese noodle made from wheat flour.

Ueda

name

A Japanese surname meaning "upper rice field."

Ueno

name

A Japanese surname meaning "upper field," and the name of a famous district and park in Tokyo.

ufo

noun

An unidentified flying object — something seen in the sky that cannot be readily explained, often associated with claims of alien spacecraft.

ug

verb

To feel or cause a strong sense of dread, disgust, or revulsion; to shudder at something repulsive.

Uganda

name

A landlocked country in East Africa, known for its lakes and wildlife.

ugh

intj

Used to express disgust, annoyance, or repugnance.

uglies

noun

The quality or state of being ugly; unattractiveness.

ugliness

noun

The quality of being unpleasant to look at.

ugly

adj

Unpleasant to look at; not attractive.

uh

intj

A filler sound used while thinking or hesitating in speech.

Ukraine

name

A country in Eastern Europe on the northern coast of the Black Sea, with Kyiv as its capital.

Ukrainian

adj

Relating to Ukraine, its people, or its language.

ukulele

noun

A small four-stringed guitar-like instrument, closely associated with Hawaiian music.

UL

verb

To upload a file to the internet or a server.

Ula

name

A feminine given name, a short form of names such as Ursula.

ulcer

noun

An open, slow-healing sore on the skin or inside the body, often caused by irritation or infection.

Ullman

name

A Jewish and German surname, likely derived from a place name or the given name Ulrich.

ulna

noun

The long bone of the forearm running from the elbow to the wrist, on the side opposite the thumb.

Ulrich

name

A masculine given name of Germanic origin, meaning "power and homeland" or "noble ruler."

Ulster

name

A historic province in the north of Ireland, made up of six counties in Northern Ireland and three in the Republic of Ireland.

ulterior

adj

Hidden or undisclosed, especially when describing a motive meant to deceive.

ultimate

adj

Final; the last in a sequence, beyond which nothing more follows.

ultimately

adv

In the end; after everything else has been considered or has happened.

ultimatum

noun

A final demand or set of terms, often carrying a threat if not accepted by a deadline.

ultra

adj

Extreme; going far beyond what is normal or moderate.

ultrasonic

adj

Having a sound frequency higher than what humans can hear, generally above 20 kilohertz.

ultrasound

noun

Sound waves at a frequency too high for humans to hear.

ultraviolet

adj

Describing light or radiation with a wavelength shorter than visible light, invisible to the human eye.

Ulysses

name

A masculine given name, the Latin form of Odysseus, the hero of Homer's Odyssey, also borne by U.S. President Ulysses S. Grant.

um

intj

A filler sound used to express hesitation or uncertainty while speaking.

Uma

noun

Any of the horse girl characters from Umamusume.

Umar

name

A masculine given name of Arabic origin, meaning "flourishing" or "long-lived," borne by the second caliph of Islam.

umbilical

adj

Relating to the navel or the umbilical cord that connects a fetus to the placenta.

umbrella

noun

A portable folding frame covered in fabric, held overhead to give shelter from rain or sun.

ume

noun

A Japanese fruit tree closely related to the plum and apricot, or its sour fruit, often pickled or used in drinks.

UMP

noun

An informal term for an umpire, especially in baseball or cricket.

umpire

noun

An official who oversees a sports match and enforces its rules, such as in baseball, cricket, or tennis.

Un

name

A Korean given name element and surname, also familiarly used to refer to North Korean leader Kim Jong Un.

Una

name

A feminine given name of Irish origin, meaning "lamb," also used as an anglicization of the Latin "una," meaning "one."

unable

adj

Not having the ability, power, or means to do something.

Unabomber

name

A nickname coined by the FBI for Theodore Kaczynski, referring to his early bombing targets of universities and airlines.

unacceptable

adj

Not good enough to be allowed, approved of, or tolerated.

unaccompanied

adj

Traveling or appearing alone, without anyone else along.

unaccounted

adj

Not explained, tracked, or included in a total; missing from a record.

unadulterated

adj

Pure, with nothing added or mixed in.

unaffected

adj

Not changed or influenced by something.

unafraid

adj

Not feeling fear; not afraid.

unanimous

adj

Agreed to by everyone, with no one dissenting.

unanimously

adv

With everyone in agreement; without any dissent.

unannounced

adj

Happening or arriving without prior notice.

unanswered

adj

Not yet answered, responded to, or resolved.

unappealing

adj

Not attractive or tempting; failing to interest or please.

unappreciated

adj

Not recognized or valued for one's effort or worth.

unarmed

adj

Not carrying a weapon.

unassuming

adj

Modest and not seeking attention or credit.

unattached

adj

Not physically joined or connected to something else.

unattainable

adj

Impossible to reach or achieve.

unattended

adj

Left alone, with no one watching or supervising.

unattractive

adj

Not pleasing in appearance.

unauthorized

adj

Done without official permission.

unavailable

adj

Not able to be obtained, used, or reached at a given time.

unavoidable

adj

Not able to be avoided or prevented; bound to happen.

unaware

adj

Not knowing about or noticing something.

unawares

adv

By surprise; without warning.

unbalanced

adj

Lacking stability or equal proportion; not balanced.

unbearable

adj

So unpleasant, painful, or difficult that it feels impossible to put up with.

unbearably

adv

To a degree that is too much to endure.

unbeatable

adj

Impossible to defeat or improve upon.

unbecoming

adj

Not flattering or attractive.

unbeknownst

adj

Without the knowledge of someone; unknown to them.

unbelievable

adj

So surprising or extraordinary that it is hard to accept as true.

unbelievably

adv

To a degree that is hard to believe; extremely.

unbiased

adj

Not favoring one side over another; fair and impartial.

unblemished

adj

Free of marks, flaws, or damage.

unblock

verb

To clear an obstruction and allow something to pass or flow again.

unborn

adj

Not yet born; still developing in the womb.

unbreakable

adj

Sturdy enough to withstand rough handling without shattering or snapping.

unbridled

adj

Held back by no restraint or limit at all; completely unchecked.

unbroken

adj

Whole and intact; not split or damaged.

unburden

verb

To relieve someone of a heavy load, worry, or responsibility.

unbutton

verb

To undo the buttons of a piece of clothing.

unbuttoned

adj

Left with the buttons undone.

unc

noun

Informal slang for a man seen as old, out of touch, or behind on current youth culture and trends.

uncalled

adj

Not summoned or requested.

uncanny

adj

Strange in a way that feels unsettling or almost supernatural.

uncaring

adj

Showing no concern or compassion for others.

uncertain

adj

Not sure or confident about something.

uncertainty

noun

A state of doubt or lack of sureness about something.

unchain

verb

To remove the chains binding someone or something.

unchallenged

adj

Not disputed or questioned by anyone.

unchanged

adj

Staying exactly the same; not altered in any way.

unchanging

adj

Staying constant over time; never varying.

uncharted

adj

Not yet mapped, surveyed, or explored.

unchecked

adj

Allowed to continue without being controlled or restrained.

uncivilized

adj

Lacking the organised institutions and culture associated with civilization.

unclaimed

adj

Not collected or taken by anyone who has a right to it.

uncle

noun

The brother of one's mother or father, or the husband of one's aunt.

unclean

adj

Dirty or covered in filth.

unclear

adj

Not obvious or easy to understand; ambiguous.

uncomfortable

adj

Causing physical discomfort.

uncomfortably

adv

In a way that causes discomfort or unease.

uncommon

adj

Not often found or seen; rare.

uncommonly

adv

To an unusually great degree.

uncomplicated

adj

Simple and easy to understand or deal with; not complex.

uncompromising

adj

Firm and unwilling to make concessions or change one's position.

unconcerned

adj

Showing no interest or worry about something.

unconditional

adj

Given completely, with no conditions, limits, or exceptions attached.

unconditionally

adv

Without any conditions or limitations.

unconfirmed

adj

Not yet officially verified or established as true.

unconnected

adj

Not joined or linked to something else.

unconscionable

adj

So unfair, unreasonable, or immoral that it defies any sense of conscience.

unconscious

adj

Not awake and unaware of one's surroundings, often due to injury or illness.

unconsciously

adv

Without being aware of doing something.

unconsciousness

noun

The state of not being awake or aware of one's surroundings.

unconstitutional

adj

Conflicting with or forbidden by a country's constitution.

uncontrollable

adjective

Impossible to control, contain, or manage.

uncontrollably

adverb

In a way that cannot be controlled or held back.

uncontrolled

adjective

Not kept in check or under anyone's control.

unconventional

adjective

Not following the usual customs, rules, or accepted way of doing things.

uncool

adjective

Not fashionable, socially acceptable, or well-regarded by a particular group.

uncooperative

adjective

Unwilling to work with others or help out.

uncouth

adjective

Lacking good manners; crude or unrefined in behavior.

uncover

verb

To remove something that was covering an object.

uncovered

adjective

Not protected by a cover, roof, or similar shelter.

uncovering

noun

The act of exposing or revealing something that was hidden.

uncuff

verb

To take handcuffs off someone.

uncut

adjective

Not cut, trimmed, or shaped.

undamaged

adjective

Not harmed, broken, or injured.

undaunted

adjective

Not discouraged or intimidated, even when facing difficulty or danger.

undead

adjective

Neither fully alive nor truly dead — animated despite being a corpse, as in folklore and fiction.

undecided

adjective

Not yet settled or resolved.

undefeated

adjective

Having never lost; still winning every match or contest so far.

undeniable

adjective

So clearly true that it cannot reasonably be argued against.

undeniably

adverb

In a way that cannot reasonably be disputed; certainly.

under

preposition

Below or beneath something, in position.

underage

adjective

Below the legal age required for an activity, such as drinking or driving.

underbelly

noun

The underside of an animal's body.

undercarriage

noun

The supporting frame underneath a vehicle.

undercooked

adjective

Not cooked long enough to be safe or pleasant to eat.

undercover

adjective

Carried out secretly, especially as part of an investigation.

undercut

verb

To sell at a lower price, or offer to work for less, than a competitor.

underdeveloped

adjective

Not fully grown or matured.

underdog

noun

A competitor who is expected to lose.

underestimate

verb

To judge something to be smaller, less important, or less difficult than it actually is.

underfoot

adverb

Beneath one's feet, on the ground.

undergo

verb

To experience or go through something, especially a difficult or significant process.

undergrad

noun

An undergraduate student.

undergraduate

noun

A university student who has not yet earned a degree.

underground

adjective

Located beneath the surface of the ground.

undergrowth

noun

Low-growing plants, shrubs, and bushes beneath the trees in a forest.

underhand

adjective

Dishonest or sneaky, done secretly.

underhanded

adjective

Dishonest, sly, or deceitful.

underhill

adjective

Describing a road, path, or track that runs along the base of a hill.

underline

verb

To draw a line beneath a word or phrase for emphasis.

underling

noun

A person of lower rank or authority than another; a subordinate.

underlying

adjective

Situated beneath or below something else.

undermine

verb

To weaken support or confidence gradually, often secretly.

undermining

noun

The act of gradually weakening someone or something, often through subtle or indirect means.

underneath

preposition

Below or beneath something, often in contact with it.

underpaid

adjective

Paid too little for the work done.

underpants

noun

A piece of underwear covering the lower torso and genitals, worn beneath outer clothing.

underpass

noun

A road or path that runs beneath another road, railway, or similar obstacle.

underprivileged

adjective

Lacking the money, opportunities, or social advantages that most people have.

underrated

adjective

Not given as much credit or recognition as it deserves.

undersea

adjective

Existing or taking place beneath the surface of the sea.

undersecretary

noun

A government official ranking just below a secretary or minister, often heading a specific division of a department.

undershirt

noun

A light, close-fitting garment worn under a shirt, next to the skin.

underside

noun

The bottom or lower surface of something.

undersigned

adjective

Having signed at the bottom of a document.

understaffed

adjective

Not having enough staff to do the work properly.

understand

verb

To grasp the meaning of something.

understandable

adjective

Able to be understood; clear.

understandably

adverb

For reasons that make sense or are easy to sympathize with.

understanding

noun

The mental grasp of what something means or how it works.

understated

adjective

Simple and restrained rather than showy or exaggerated.

understatement

noun

A statement that presents something as smaller, milder, or less significant than it really is, sometimes for ironic effect.

understood

adjective

Grasped or accepted without needing to be stated directly.

understudy

noun

A performer who learns a role well enough to step in if the usual actor cannot perform.

undertake

verb

To take on a task or responsibility and commit to completing it.

undertaker

noun

A person or business that arranges funerals, including preparing the body and organizing the burial or cremation.

undertaking

noun

A task or project that someone takes responsibility for, especially a large or difficult one.

undertow

noun

A strong current beneath the surface of the water that pulls back out to sea after a wave breaks.

underwater

adjective

Existing or happening beneath the surface of water.

underway

adverb

In progress or already started.

underwear

noun

Clothing worn directly against the skin, beneath outer clothes.

underwood

noun

Low shrubs, bushes, and small trees growing beneath the taller trees of a forest.

underworld

noun

The organized criminal side of society, especially those involved in serious or large-scale crime.

undesirable

adjective

Not wanted; unpleasant or likely to cause problems.

undetectable

adjective

Impossible to notice or find using available methods.

undetected

adjective

Not noticed or discovered.

undetermined

adjective

Not yet decided or settled.

undeveloped

adjective

Not built up or used for a particular purpose, especially land.

undies

noun

A casual, informal word for underwear.

undignified

adjective

Lacking dignity; embarrassing or unbecoming.

undisciplined

adjective

Lacking self-control or order; not following rules or training.

undisclosed

adj

Not revealed or made public; kept secret.

undiscovered

adj

Not yet found or identified; still unknown.

undisputed

adj

Accepted by everyone as true or correct, with no argument against it.

undisturbed

adj

Left alone; not interrupted or interfered with.

undivided

adj

Whole and complete; not split into separate parts, or fully focused.

undo

verb

To reverse or cancel the effect of something already done.

undocumented

adj

Not recorded in official papers or written instructions.

undoing

noun

The cause of someone's failure or ruin.

undone

adj

Not finished or completed.

undoubtedly

adv

Without any doubt; certainly.

undress

verb

To take off one's clothes.

undressed

adj

Having taken one's clothes off, partly or completely.

undressing

noun

The act of taking off someone's or one's own clothes.

undue

adj

More than is reasonable or necessary; excessive.

unduly

adv

To an excessive or unwarranted degree.

undying

adj

Lasting forever; never fading or ending.

unearth

verb

To dig something out of the ground.

unearthed

adj

Not connected to an electrical earth (ground) wire.

unearthly

adj

Strange or eerie in a way that seems more than natural.

unease

noun

A feeling of worry, discomfort, or mild anxiety.

uneasiness

noun

A state of being nervous, restless, or anxious.

uneasy

adj

Feeling worried, nervous, or not at ease.

uneducated

adj

Not having received much or any formal schooling.

unemployed

adj

Without a job, despite being able and willing to work.

unemployment

noun

The state of not having a paid job.

unending

adj

Never stopping or finishing; seemingly endless.

unequal

adj

Not the same in size, amount, value, or status.

unequivocal

adj

Completely clear and leaving no room for doubt or misinterpretation.

unequivocally

adv

In a way that is completely clear, with no ambiguity.

unethical

adj

Not conforming to accepted moral or professional standards.

uneven

adj

Not flat or level; having bumps, dips, or irregularities.

uneventful

adj

Without anything interesting or noteworthy happening.

unexpected

adj

Not anticipated or predicted beforehand.

unexpectedly

adv

In a way that surprises; without warning.

unexplainable

adj

Impossible to account for or make sense of.

unexplained

adj

Not yet accounted for; of unknown cause.

unexploded

adj

Of a bomb or shell, not having gone off; still capable of exploding.

unexplored

adj

Not yet examined, visited, or investigated.

unfair

adj

Not fair or just; treating people unequally or wrongly.

unfairly

adv

In a manner that is not fair or just.

unfaithful

adj

Not sexually loyal to a partner; cheating.

unfamiliar

adj

Not known or recognised; strange.

unfashionable

adj

Not in keeping with current fashion or trends.

unfathomable

adj

So deep that it cannot be measured.

unfeeling

adj

Showing no emotion, sympathy, or compassion; callous.

unfettered

adj

Not held back by chains or shackles; physically free.

unfinished

adj

Not completed; still in progress.

unfit

adj

Not suitable or qualified for a particular purpose or role.

unflattering

adj

Making someone or something look worse than they really are.

unfocused

adj

Lacking a clear aim, direction, or concentration.

unfold

verb

To open out something that was folded.

unfolded

adj

Not folded; opened out flat.

unfolding

noun

The gradual process of something becoming clear or happening.

unforeseen

adj

Not expected or predicted in advance.

unforgettable

adj

So memorable that it cannot easily be forgotten.

unforgivable

adj

Too bad to be excused or forgiven.

unforgiving

adj

Unwilling to forgive others or show mercy.

unfortunate

adj

Having bad luck; suffering misfortune.

unfortunately

adv

Happening as a result of bad luck or misfortune.

unfounded

adj

Not based on facts or solid evidence.

unfreeze

verb

To thaw something that was frozen.

unfriendly

adj

Not friendly; cold or hostile in manner.

unfulfilled

adj

Not satisfied; feeling that one's goals or desires haven't been achieved.

Ung

name

A Chinese and Cambodian surname, corresponding to different origins depending on the country.

Unger

name

A German and Jewish surname, originally denoting someone from Hungary.

ungh

intj

An exclamation of strain, effort, or strong feeling.

ungodly

adj

Lacking reverence for God; not in keeping with religious teaching.

ungrateful

adj

Not thankful; failing to show appreciation for something received.

unguarded

adj

Not protected or watched over; vulnerable to attack.

unhand

verb

To let go of someone or something held in the hand or grip.

unhappily

adv

Without happiness; sadly or discontentedly.

unhappiness

noun

The state or feeling of not being happy.

unhappy

adj

Feeling or showing sadness.

unharmed

adj

Not hurt or damaged.

unhealthy

adj

Harmful to health, or lacking good health.

unheard

adj

Not perceived by the ear; not heard.

unhelpful

adj

Not providing useful help or assistance.

unhinged

adj

Mentally unstable or out of control.

unholy

adj

Not holy; wicked, evil, or sacrilegious.

unhook

verb

To remove something from a hook.

unhurt

adjective

Not hurt or injured; unharmed.

uni

noun

Informal British/Australian term for university.

UNICEF

noun

The United Nations agency that provides humanitarian aid and support to children around the world.

unicorn

noun

A mythical horse-like creature with a single horn growing from its forehead.

unicycle

noun

A pedal-powered cycle with just one wheel.

unidentified

adjective

Not identified; whose name or nature is unknown.

unification

noun

The act or process of joining separate parts into a single whole.

unified

adjective

Brought together into a single whole; acting as one.

uniform

noun

A distinctive set of clothes worn by members of a particular group, such as a school, army, or company.

uniformed

adjective

Wearing a uniform, especially as part of one's job.

unify

verb

To bring separate parts together into one; to make unified.

unifying

adjective

Bringing people or things together; creating a sense of unity.

unilateral

adjective

Undertaken by only one side or party, without agreement from others involved.

unimaginable

adjective

So extreme or unusual that it is hard to picture or believe.

unimaginably

adverb

To a degree that is hard to picture or believe.

unimportant

adjective

Not important; of little significance.

unimpressed

adjective

Not impressed; unmoved or unconvinced by something.

uninformed

adjective

Lacking knowledge or information about a subject; not well informed.

uninhabitable

adjective

Not fit to live in.