Synonyms and Antonyms for Letter O
| Word | Synonyms | Antonyms |
| Obtain | acquire, get, receive | lose, miss, forfeit |
| Obvious | apparent, clear, evident | obscure, hidden, concealed |
| Occasional | infrequent, sporadic, intermittent | frequent, regular, constant |
| Occupy | fill, take up, hold | vacate, empty, abandon |
| Odd | strange, peculiar, unusual | normal, typical, or ordinary |
| Offer | propose, suggest, present | refuse, reject, decline |
| Often | frequently, regularly, commonly | rarely, seldom, infrequently |
| Okay | alright, all right, acceptable | unacceptable, bad, wrong |
| Old | aged, ancient, elderly | young, new, modern |
| Open | uncovered, exposed, accessible | closed, shut, sealed |
| Opposite | contrary, opposing, conflicting | identical, same, alike |
| Optimistic | hopeful, positive, cheerful | pessimistic, negative, gloomy |
| Ornate | decorated, elaborate, embellished | simple, plain, unadorned |
| Other | different, alternative, additional | same, identical, alike |
| Outrageous | shocking, scandalous, and appalling | normal, ordinary, acceptable |
| Overjoyed | delighted, ecstatic, thrilled | sad, unhappy, sorrowful |
| Overwhelmed | flooded, inundated, swamped | calm, composed, relaxed |
| Own | possess, have, hold | rent, lease, borrow |
| Owe | be indebted to, be obligated to | pay off, repay, settle |
| Oxymoron | contradiction, paradox, anomaly | consistency, harmony, agreement |
| Ozone | oxygen, atmosphere, air | pollution, smog, contamination |
| Obey | follow, comply, adhere to | disobey, defy, disregard |
| Obtainable | available, accessible, procurable | unavailable, inaccessible, unobtainable |
| Obstinate | stubborn, willful, persistent | yielding, compliant, flexible |
| Obviousness | clarity, plainness, evidence | obscurity, vagueness, ambiguity |
| Occupational | related to work, professional, vocational | non-occupational, leisure, recreational |
| Oddity | peculiarity, eccentricity, strangeness | normality, typicality, regularity |
| Offense | insult, slight, wrong | compliment, praise, commendation |
| Oftentimes | frequently, regularly, commonly | rarely, seldom, infrequently |
| Okayness | acceptability, approval, all rightness | unacceptability, disapproval, wrongness |
| Old-fashioned | outdated, antique, outmoded | modern, up-to-date, contemporary |
| Open-minded | tolerant, receptive, impartial | narrow-minded, prejudiced, biased |
| Oppositely | contrariwise, conversely, otherwise | similarly, likewise, identically |
| Optimistically | hopefully, positively, cheerfully | pessimistically, negatively, and gloomily |
| Ornate-looking | decorative, elaborate, embellished | simple, plain, unadorned |
| Otherwise | differently, alternatively, else | similarly, likewise, identically |
| Outrageously | shockingly, scandalously, and appallingly | normally, ordinarily, acceptably |
| Overjoyedly | delightedly, ecstatically, thrilledly | sadly, unhappily, sorrowfully |
| Overwhelmingly | flooded, inundated, swamped | calmly, composedly, relaxed |
| Ownership | possession, having, holding | tenancy, leasehold, rental |
| Owed | indebted, obligated, owing | paid off, repaid, settled |
| Oxymoronic | contradictory, paradoxical, anomalous | consistent, harmonious, agreeing |
| Ozonic | related to ozone, atmospheric, air-related | non-ozonic, polluting, smog-related |
| Obeying | following, complying, adhering to | disobeying, defying, and disregarding |
| Obtainability | availability, accessibility, procurableness | unavailability, inaccessibility, unobtainability |
| Obstinacy | stubbornness, willfulness, persistence | yieldingness, compliance, flexibility |
| Obviousness | clarity, plainness, evidence | obscurity, vagueness, ambiguity |
| Occupational | related to work, professional, vocational | non-occupational, leisure, recreational |
| Oddity | peculiarity, eccentricity, strangeness | normality, typicality, regularity |
| Offense | insult, slight, wrong | compliment, praise, commendation |
| Oftentimes | frequently, regularly, commonly | rarely, seldom, infrequently |
| Okayness | acceptability, approval, all rightness | unacceptability, disapproval, wrongness |
| Old-fashioned | outdated, antique, outmoded | modern, up-to-date, contemporary |
| Open-minded | tolerant, receptive, impartial | narrow-minded, prejudiced, biased |
| Oppositely | contrariwise, conversely, otherwise | similarly, likewise, identically |
| Optimistically | hopefully, positively, cheerfully | pessimistically, negatively, and gloomily |
| Ornate-looking | decorative, elaborate, embellished | simple, plain, unadorned |
| Otherwise | differently, alternatively, else | similarly, likewise, identically |
| Outrageously | shockingly, scandalously, and appallingly | normally, ordinarily, acceptably |
| Overjoyedly | delightedly, ecstatically, thrilledly | sadly, unhappily, sorrowfully |
| Overwhelmingly | floodedly, inundatedly, swampedly | calmly, composedly, relaxedly |
| Ownership | possession, having, holding | tenancy, leasehold, rental |
| Owed | indebted, obligated, owing | paid off, repaid, settled |
| Oxymoronic | contradictory, paradoxical, anomalous | consistent, harmonious, agreeing |
| Ozonic | related to ozone, atmospheric, air-related | non-ozonic, polluting, smog-related |
| Obeying | following, complying, adhering to | disobeying, defying, and disregarding |
| Obtainability | availability, accessibility, procurableness | unavailability, inaccessibility, unobtainability |
| Obstinacy | stubbornness, willfulness, persistence | yieldingness, compliance, flexibility |
| Obviousness | clarity, plainness, evidence | obscurity, vagueness, ambiguity |
| Occupational | related to work, professional, vocational | non-occupational, leisure, recreational |
| Oddity | peculiarity, eccentricity, strangeness | normality, typicality, regularity |
| Offense | insult, slight, wrong | compliment, praise, commendation |
| Oftentimes | frequently, regularly, commonly | rarely, seldom, infrequently |
| Okayness | acceptability, approval, all rightness | unacceptability, disapproval, wrongness |
| Old-fashioned | outdated, antique, outmoded | modern, up-to-date, contemporary |
| Open-minded | tolerant, receptive, impartial | narrow-minded, prejudiced, biased |
| Oppositely | contrariwise, conversely, otherwise | similarly, likewise, identically |
| Optimistically | hopefully, positively, cheerfully | pessimistically, negatively, and gloomily |
| Ornate-looking | decorative, elaborate, embellished | simple, plain, unadorned |
| Otherwise | differently, alternatively, else | similarly, likewise, identically |
| Outrageously | shockingly, scandalously, and appallingly | normally, ordinarily, acceptably |
| Overjoyedly | delightedly, ecstatically, thrilledly | sadly, unhappily, sorrowfully |
| Overwhelmingly | floodedly, inundatedly, swampedly | calmly, composedly, relaxedly |
| Ownership | possession, having, holding | tenancy, leasehold, rental |
| Owed | indebted, obligated, owing | paid off, repaid, settled |
| Oxymoronic | contradictory, paradoxical, anomalous | consistent, harmonious, agreeing |
| Ozonic’s | pertaining to ozone, the atmosphere, and air | non-ozonic, polluting, smog-related |
| Obeying | following, complying, adhering to | disobeying, defying, and disregarding |
| Obtainability | availability, accessibility, procurableness | unavailability, inaccessibility, unobtainability |
| Obstinacy | stubbornness, willfulness, persistence | yieldingness, compliance, flexibility |
| Obviousness | clarity, plainness, evidence | obscurity, vagueness, ambiguity |
| Occupational | related to work, professional, vocational | non-occupational, leisure, recreational |
| Oddity | peculiarity, eccentricity, strangeness | normality, typicality, regularity |
| Offense | insult, slight, wrong |
synonyms and antonyms for letter O
synonyms and antonyms for letter O
