What is Antonyms ?
An antonym is a word that has the opposite meaning of another word. For example, the antonyms of word above is below. Authentic means genuine and reliable, is an antonym of counterfeit, means to imitate something authentic, with the intent to steal, destroy, or replace the original, for use in illegal transactions.
You will also get the antonyms of nouns, verbs, adjectives, and adverbs. A word can also have multiple antonyms. For example, the antonyms of word slow is fast, quick, speedy, swift etc.
Here you will get all Antonyms starting with O
List of Antonyms Starting with O
| Words | Antonyms |
|---|---|
| Obedient | disobedient, untruly, intractable |
| Obey | disobey, ignore, defy |
| Objection | approval, acceptance |
| Obligatory | optional, voluntary |
| Oblivious | aware, conscious, attentive |
| Obnoxious | delightful, pleasant, agreeable |
| Obscure | clear, plain, distinct, famous |
| Obscure | clarify, reveal, brighten |
| Observe | overlook, ignore |
| Obsolete | current, modern, up-to-date |
| Obstacle | help, advantage |
| Obstinate | clear, advance, help, facilitate |
| Obstruct | amenable, flexible |
| Occasional | regular, habitual |
| Occupied | free, empty, vacant |
| Occupy | leave, abandon, quit |
| Odd | ordinary, regular, usual |
| Off | on, present, available |
| Offend | please, delight |
| Offer | withdraw, withhold, refuse |
| Offhand | careful, thorough |
| Official | unofficial, unauthorised, informal |
| Offspring | parents, ancestor, forebear |
| Often | sedon, never |
| Okay | refusal, denial |
| Okay | refuse, forbid, veto |
| Oral | written |
| Old | young, new, modern |
| Omission | addition, inclusion |
| Omit | add, include |
| Once | now, often |
| Opaque | transparent, clear, lucid |
| Open | shut, close |
| Opponent | ally, partner, colleague |
| Oppose | support, defend, promote |
| Opposite | same, like, identical |
| Optimist | pessimist |
| Optimistic | gloomy, pessimistic |
| Oral | written |
| Order | disorder, chaos, disarray |
| Ordinary | unusual, unique, extraordinary |
| Organize | destroy, disorganize, jumble |
| Origin | end, death, demise |