ANTONYMS : O

1.	Obdurate	Amenable, Biddable, Complaint, Flexible, Malleable, Plaint, Soft-hearted, Submissive, Tender, Tractable, Yielding, Placid,
2.	Odd	Ordinary, normal, commonplace
3.	Obedient	Obstinate, disobedient, stubborn, rebellious
4.	Odious	Enjoyable, Pleasant, Pleasing, Winsome, Agreeable, Charming, Congenial, Delightful, Enchanting
5.	Obligatory	Desired, Willing, Voluntary, Self, Chosen
6.	Obliterate	Form, Formulate, Generate, Make, Build, Construct, Create, Establish
7.	Oblivious	Attentive, Aware, Observant
8.	Obscure	Straightforward, Transparent, Unadorned, Obvious, Evident, Distinct, Apparent, Intelligible, Lucid, Plain
9.	Obstinate	Amenable, compliant, yielding, agreeable
10.	Onerous	Easy, Fluent, Harmless Comfortable
11.	Ooze	Rush, Pour, Gush, Flow, Rain
12.	Opinion	Silence, Dictation, Non-committal, Execution, Order
13.	Opportunity	Omission, Lapse, Neglect ,Leave undone
14.	Oppose	Support, encourage, assist, aid
15.	Optimistic	Cheerless, Hopeless, Pessimist, Dejected, Drooping, Disappointment
16.	Opulent	Moneyless, Needy, Penurious, Poor, Poverty – stricken, Destitute, Down and out, Broke
17.	Organise	Disarrange, disorder, disrupt
18.	Orderly	Chaotic ,Disorderly, Untidy, Messy
19.	Ordinary	Queer, uncommon, rare, unusual
20.	Order	Disorder, confusion, chaos, anarchy
21.	Original	Old, Ordinary, Spoiled, Standard, Traditional, Typical, Usual, Secondary, Final, Last, Antiquated, Conventional, Familiar, Normal
22.	Outbreak	Order, Quiet, Subsidence
23.	Outstanding	Dull ,Inferior ,Insignificant, Mediocre ,Ordinary, Pedestrian, Run of the mill, Unexceptional, Unimpressive
24.	Own	Abjure, disclaim, renounce, deny