Thesaurus — Synonyms & Antonyms

oaf

galoot, imbecile, lout, moron, fool

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oath

pledge, vow, avowal

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oats

haver

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Oaxaca

Oaxaca City

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obedience

submission, hearsomeness

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obelisk

aguilla, pylon, stela

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obey

hearken, mind, accede, assent, acquiesce

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object

target, demur, except, take exception

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objectivity

objectiveness

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obligatory

bounden, mandatory, incumbent

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oblique

slash

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oblivion

forgetness

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obscene

adult, bawdy, blue, cheeky, dirty

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observatory

observatorium

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obsess

fixate

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obsolete

anachronistic, antediluvial, antediluvian, antiquated, antique

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obstinacy

conviction, insistence, recalcitrance, stubbornness, tenacity

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obstinate

persistent, stubborn, pertinacious, adamant, ardent

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obstruct

barricade, block, choke, clog, close off

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obstruction

block, hindrance, impedance, roadblock, stop

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obtuse

obtuse-angled, blunt, dull

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obviously

clearly, evidently, manifestly, obvi, blatantly

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occasionally

at times, ever and anon, every once in a while, every now and then, every so often

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occupant

occupier

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occupation

interest, line of work, profession, vocation, avocation

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occupy

go to bed with, sleep with

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occur

betide, betime, come to pass, happen, take place

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occurrence

affair, befalling, episode, event, goings-on

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octagon

8-gon

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octopus

polypus

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oddball

odd duck, strange fish, queer fish, weirdo

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Odin

All-Father, Wotan, Woden, Odhin, Odhinn

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off

away, out

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offend

abuse, affront, burn, carry, cut down

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offense

affront, barb, burn, dis, diss

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offensive

aggressive, invidious, unheard-of

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offhand

extemporaneous, off-the-cuff

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officer

direct, conduct, manage

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official

approved, recognized, sanctioned, decreed

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offset

compensate for, counterbalance, countervail, equivalence, offlay

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oink

grunt

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ointment

salve, unguent, pomatum, pomade, pomate

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okra

bandikai, bhindi, gumbo, ladyfinger

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old

ancient, long in the tooth, paleo-, ageing, aging

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olden

historical, eldern

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oldie

classic hit

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omen

augury, auspice, foreshadowing, foretoken, forewarning

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ominous

augurous, baleful, bodeful, boding, dire

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omit

miss out, except, exclude, leave out, miss off

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once

oncet, yance, wunst

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one

yan, yen, you, they

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oneness

onehead, oneship, singleness, unicity, unitude

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opaque

adiaphanous, nontransparent, opacous, opacular, thick

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open

accessible, unimpeded, unseal

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opening

gap, crevice, interspace

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opium

aunti/aunti Emma, big O, chandu, Chinese tobacco, dopium

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opponent

adversary, antagonist

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opportune

proper, timesome

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oppose

be against, fight, check, bar, block

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opposite

antipodean, antithetical, contrariant, contradictory, contrariwise

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oppressive

harsh

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optimum

pessimum

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option

alternative, choice, possibility, contingency

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oracle

ariolater, Chaldean, clairvoyant, divinator, diviner

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orange

amber, coral, ginger, gold, golden brown

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orator

speaker

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orb

globe

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orchid

orchidea

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order

ordo, association, brotherhood, league, sisterhood

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orderly

trim, well-kept, all Sir Garnet, Bristol fashion and shipshape, in order

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ordinarily

commonly, most of the time, routinely

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organism

being, biont

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organization

organization/organisation

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organize

adapt, adjust, apportion, arrange, assort

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organizer

chief, controller, comptroller, foreman, head

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orgasm

acme, big O, completion, happy ending, pleasure

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original

autograph, prototype

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originally

initially, at the start

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originate

initiate, take shape

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orthodox

halal, homodox, kosher, by the book, allowed

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orthodoxy

homodoxy

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osprey

fish eagle, fish hawk, orfray, ossifrage, osspringer

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Ottawa

National Capital Region, NCR, Ottawa-Hull, Ottawa-Gatineau, O-town

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ounce

oz., fl. oz.

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ourselves

usself, weself

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out

away, passé, unchic

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outcast

abject, castaway, deviant, exile, fremd

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outdated

fusty, parachronistic

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outer

informant

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outgoing

outgang

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outhouse

backhouse, backside, bog, boggard, boghouse

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outlying

far

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outrageous

preposterous

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outrank

rank

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outward

outwards

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outwardly

superficially, to all appearances

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outwards

outward

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oval

ovular, ovoid, ovate, ovaline, elliptical

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ovary

ovarium

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overall

overslop, slop

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overcooked

overdone

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overdressed

overclothed

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overpass

surpass, transgress, miss, overlook, take no notice of

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overseer

administrator, chief, comptroller, controller, curator

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overtaken

drunk

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overweight

ample, beer-bellied, big, bulky, chubby

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overwhelm

grip, ravish

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overwhelming

ravishing, sweeping

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ownership

owndom, possession, proprietorship, propriety

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