List of Adjectives: o

1. oafish
2. obedient
3. obeisant
4. obese
5. oblong
6. obnoxious
7. obscene
8. obsequious
9. observant
10. obsolete
11. obtainable
12. oceanic
13. odd
14. offbeat
15. offensive
16. official
17. old
18. old-fashioned
19. oldish
20. omniscient
21. one
22. onerous
23. open
24. opposite
25. optimal
26. orange
27. ordinary
28. organic
29. ossified
30. ostrich
31. our
32. outgoing
33. outlying
34. outrageous
35. outstanding
36. outward
37. oval
38. overage
39. overconfident
40. overjoyed
41. overrated
42. overt
43. overwrought
44. own