| Objective |
goal, purpose, intention, resolve |
origin, inception, deviating, subjective |
| Obnoxious |
pernicious, detestable, abhorrent, offensive |
attractive, gratifying, beneficial, desirable |
| Obsequious |
slavish, servile, sycophantic, subservient |
insolent, arrogant, defiant, assertive |
| Obsolete |
outworn, archaic, antiquated, obsolescent |
modern, novel, vogue, contemporary |
| Obstinate |
stubborn, resolute, unyielding, obdurate |
submissive, obedient, amenable, pliable |
| Obstruct |
impede, prevent, restrain, retard |
hasten, encourage, expedite, promote |
| Obvious |
evident, apparent, distinct, conspicuous |
obscure, ambiguous, indiscernible, confusing |
| Occult |
latent, ambiguous, esoteric, elusive |
intelligible, transparent, fathomable, scrutable |
| Odious |
abhorrent, obnoxious, prejudice, malevolent |
engaging, fascinating, endearing, captivating |
| Offensive |
abhorrent, arrogant, insolent, impudent |
docile, compliant, courteous, captivating |
| Offspring |
descendants, siblings, posterity, progeny |
ancestors, forefathers, pedigree, progenitors |
| Ominous |
threatening, inauspicious, forebode, menacing |
consoling, auspicious, propitious, comforting |
| Onerous |
arduous, troublesome, inconvenient, formidable |
facile, agreeable, uncomplicated, flexible |
| Opaque |
filmy, dim, obscure, shady |
transparent, bright, translucent, revealing |
| Oracular |
cryptic, vague, enigmatic, profound |
lucid, distinct, intelligible, unambiguous |
| Ordain |
order, impose, prescribe, proclaim |
revoke, abolish, violate, abrogate |
| Ornamental |
decorative, adorned, glamorous, picturesque |
unseemly, plain, blemished, disfigured |
| Ostensible |
apparent, evident, obvious, overt |
concealed, covert, obscure, vague |
| Ostentation |
display, pretension, Vaunt, pomposity |
modesty, constraint, diffidence, economy |
| Outbreak |
eruption, insurrection, explosion, outbrust |
compliance, subjection, passivity , harmony |
| Outrage |
offence, maltreatment, assault, irreverent |
praise, favour, esteem, reverence |
| Overbearing |
oppressive, domineering, intimidating, despotic |
submissive, humble, lenient, forbearing |
| Oversight |
omission, error, fault, slip |
precision, observance, circumspection, caution |
| Overwhelm |
triumph, subjugate, overpower, vanquish |
flounder, falter, restore, impotent |
| Overwrought |
excited, agitated, fervent, intense |
quiet, tranquil, composed, cool |
