Positive Adjectives That Start with O: A Complete List

You’ll find a list of positive adjectives that start with the letter “O” to enrich your vocabulary and uplift your descriptions here.

1. Optimistic- hopeful and confident about the future.
2. Outstanding- exceptionally good.
3. Open- minded – willing to consider new ideas.
4. Original- fresh and unusual; not a copy.
5. Outgoing- sociable and easy to get along with.
6. Observant- quick to notice things.
7. Obedient- willing to follow commands or instructions.
8. Obliging- willing to help others.
9. Orderly- neatly and methodically arranged.
10. Opulent- richly luxurious or lavish.
11. Objective- unbiased and impartial.
12. Overflowing- abundant and plentiful.
13. Organic- natural and wholesome.
14. Omniscient- all-knowing and wise.
15. Optimal- best or most favorable.
16. Open- hearted – kind and generous.
17. Ornate- elaborately decorated or adorned.
18. Obvious- easily perceived or understood.
19. Oner- free – without burden; easy-going.
20. Operative- functioning effectively.
21. Olympian- majestic; superior in quality.
22. Overjoyed- extremely happy.
23. On- point – exactly right; perfect.
24. Omnipotent- all-powerful.
25. Opportune- occurring at a favorable time.
26. Outstandingly- exceptionally well.
27. Overflowing- abundant and plentiful.
28. Observant- alert and watchful.
29. Optimized- made efficient and effective.
30. Over- the-moon – extremely pleased or happy.
31. Overcoming- successfully dealing with obstacles.
32. Orderly- methodical and systematic.
33. Ossified- set in a stable, unchangeable manner.
34. Open- honest and transparent.
35. Obligeable- willing and eager to help.
36. Onward- progressing forward.
37. One- of-a-kind – unique; unparalleled.
38. Overachieving- performing above expectations.
39. Outstandingly- exceptionally well.
40. Organizational- skilled at arranging things systematically.
41. On- the-ball – alert and efficient.
42. Outfitting- equipped with everything needed.
43. Ovation- worthy – deserving of applause.
44. Optimal- most effective and desirable.
45. Overjoying- causing great happiness.
46. Overcoming- successfully dealing with obstacles.
47. Outspoken- honest and direct in speech.
48. Overcoming- successfully dealing with challenges.
49. Observant- keenly perceptive.
50. Operable- capable of being operated or used.
51. Outstretching- reaching out enthusiastically.
52. Organized- systematic and efficient.
53. Outdistance- ahead of others.
54. Oratorical- eloquent and skilled in public speaking.
55. Openhanded- generous and giving.
56. Outstanding- extraordinarily good.
57. Overflowing- very full or packed.
58. Original- inventive and unique.
59. Optimized- made the best use of.
60. Overriding- dominant and important.
61. Overwhelming- powerfully affecting.
62. Obliging- ready to help kindly.
63. Opulent- luxuriously rich.
64. Openhearted- kind and generous.
65. One- of-a-kind – unique and irreplaceable.
66. Outperforming- doing better than others.
67. On- going – continuing without interruption.
68. Observing- watching thoughtfully.
69. Overachieving- surpassing expectations.
70. Organizing- arranging systematically.