Thesaurus — Synonyms & antonyms

uber

super, ultra, mega, hyper

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ubiquitous

omnipresent, everywhere, widespread, pervasive, universal

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ubiquity

omnipresence, pervasiveness, prevalence, universality

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udder

bag

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ufo

flying saucer, unidentified flying object

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ug

fright, sick, surplus, loathe, sicken

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ugh

yuck, ew, blegh, bleh, eww

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ugliness

repulsiveness, homeliness

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ugly

unattractive, unsightly, hideous, unappealing, grotesque

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uh

um, er, ah, hmm, erm

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UI

user interface, interface, front end, screen design, interface design

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Ukrainian

Ruthenian, Ruthene, Ukie, Yukie

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ukulele

uke

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UL

upload

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ulcer

ulceration

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ulna

elbow bone

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Ulster

overcoat, greatcoat

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ultimate

final, last, eventual, conclusive, supreme

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ultimately

eventually, finally, in the end, at last, in the long run

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ultra

extreme, radical, excessive, immoderate, fanatical

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ultrasound

sonography, echography, ultrasonography

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ultraviolet

UV, ultraviolet light, ultraviolet radiation, ultraviolet illumination

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um

er, uh, erm, hmm

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umami

savouriness, savoury taste, meatiness

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umbilical

umbilical cord

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umbrella

brolly, sunshade, parasol, canopy, shade

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UMP

umpire

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umpire

referee, ump, arbiter, arbitrator

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Una

�na

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unable

incapable, powerless, not able, unfit, unequipped

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unabridged

complete, uncut, full-length, integral

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unacceptable

intolerable, inadmissible, objectionable, unsatisfactory, impermissible

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unaffected

untouched, unmoved

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unafraid

secure, fearless, untroubled

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unanimous

united, undivided, concordant, in agreement

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unanimously

collectively, without dissent, as one

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unappealing

unsympathetic, unlikable, unlikeable

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unarmed

weaponless, defenseless

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unattached

uncommitted

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unauthorized

unsanctioned, unapproved, unofficial, unlicensed

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unavailable

inaccessible, unobtainable, off-limits, out of reach

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unaware

oblivious, ignorant, unmindful, uninformed, unwitting

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unawares

short

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unbalanced

imbalanced

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unbearable

intolerable, unendurable

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unbecoming

unsuitable, unfit, indecent, indecorous, improper

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unbelievable

incredible, implausible, inconceivable, far-fetched, astonishing

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unbelievably

incredibly

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unblemished

unmarred, unmutilated

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unblock

free, release, unfreeze

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unbroken

continuous, uninterrupted

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unburden

disburden

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uncertain

unsure, doubtful, undecided, unclear, hesitant

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uncertainty

doubt, doubtfulness, unsureness, unpredictability, ambiguity

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unchain

unfetter

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unchanged

static, stable, constant

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uncircumcised

intact, natural, gentile, heathen

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uncle

eam, eme, nuncle, uncley, unclie

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unclean

befouled, besmirched, clarty, cruddy, dirtsome

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unclear

vague, ambiguous, obscure, hazy, murky

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uncomfortable

awkward, uneasy, ill at ease, unpleasant, distressing

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uncommon

rare, unusual, exceptional, remarkable, extraordinary

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uncommonly

unwontedly, sporadically

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uncompromising

sturdy, inflexible

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unconditional

unconditioned

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unconditionally

flatly, categorically

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unconnected

arbitrary, betwixt and between, incoherent, independent, irrelative

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unconscious

senseless, insensible, comatose, involuntary, unintentional

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unconstitutional

unlawful, illegitimate, invalid

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unconvinced

doubtful, skeptical, agnostic

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uncover

uncloak, uncoif, unhat

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uncovered

exposed, unprotected, bare, revealed

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uncovering

find, discovery, stripping, baring, husking

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uncured

raw, untreated, fresh, unset, green

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uncut

rough, unmown, untrimmed

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undefeated

unbeaten, unconquered

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under

less than, lower than, short of, below, beneath

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under the weather

poorly, off colour, out of sorts, unwell, peaky

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underage

minor

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underbelly

underbody

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undercooked

underdone

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undercover

incognito, plainclothes, clandestine

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underestimate

downplay, discount, lowball, misunderestimate, sell short

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undergo

go through, experience, withstand, sustain, face

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undergrad

undergraduate

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undergraduate

student, collegian

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underground

subterranean, buried, sunken, covert, clandestine

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undergrowth

underwood, underbrush

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underhand

underhanded, backdoor, underarm

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underline

emphasize, emphasise, underscore

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underling

superior

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underlying

fundamental, basic, root, latent, hidden

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undermine

erode, subvert, destabilize, weaken, sabotage

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underneath

below, beneath, under, underside

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underpass

subway

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underrated

overlooked, underappreciated, undervalued, underestimated, unsung

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undershirt

vest, singlet

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underside

bottom, undersurface

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understand

follow, fathom, appreciate, realize, apprehend

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understandable

comprehensible, reasonable, excusable, forgivable, logical

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understandably

clearly, intelligibly

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understanding

comprehension, grasp, insight, awareness, appreciation

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understood

implied, implicit, tacit, unspoken, assumed

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understudy

alternate, standby

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undertake

take on, commit to, engage in, embark on, pledge

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undertaker

mortician, funeral director, funeral undertaker

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undertaking

enterprise, venture, endeavor, commitment, pledge

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undertow

sea puss, sea-puss, sea purse, sea-purse, sea-poose

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underwater

submerged, undersea, subaqueous, submarine, sunken

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underway

ongoing, in progress, proceeding, in motion, afoot

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underwear

intimates, drawers, briefs, underpants, shreddies

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underwood

undergrowth, underbrush

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underworld

Hell, Hades, netherworld, Scheol, infernal region

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undesirable

unwanted

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undetermined

indeterminate

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undeveloped

unexploited

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undo

reverse, revert, cancel, unfasten, loosen

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undoing

untying, unfastening

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undoubtedly

certainly, definitely, unquestionably, indisputably, surely

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undress

denude, despoil, dismantle, disrobe, divest

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unearth

excavate

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unease

malaise, uneasiness, disquiet

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uneasiness

unease, malaise, restlessness, edginess, disquiet

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uneasy

restless

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unemployed

unwaged, laid off, unoccupied, between jobs, employmentally challenged

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unemployment

redundancy, layoffs, idleness, underemployment, joblessness

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unequal

disparate, uneven

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unequivocal

unambiguous, univocal

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unequivocally

unambiguously

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uneven

irregular, bumpy, lopsided, inconsistent, patchy

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unexpected

unforeseen, unanticipated, unpredicted, sudden, surprising

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unexpectedly

suddenly, abruptly, out of the blue, without warning, surprisingly

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unfair

unjust, inequitable, biased, one-sided, prejudiced

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unfairly

below the belt

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unfaithful

nonfaithful

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unfamiliar

unknown, strange, alien, unaccustomed, new

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unfashionable

démodé, passé, unchic, malformed, misshapen

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unfinished

incomplete, uncompleted, in progress, rough, unpolished

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unflattering

uncomplimentary

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unfocused

unfocussed

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unfold

uncover

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unfolding

flowering

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unfortunate

unlucky, hapless, luckless, regrettable, ill-fated

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unfortunately

sadly, regrettably, unluckily, unhappily, sad to say

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unfreeze

defrost

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ungrateful

ingrate

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unhappily

sadly

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unhappiness

sadness

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unhappy

sad, miserable, sorrowful, dejected, downcast

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unhealthy

harmful, damaging, detrimental, unwholesome, noxious

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