3.5

1. aggressive
2. arrogant
3. captious
4. cynical
5. dogmatic
6. fastidious
7. fatuous
8. garrulous
9. gregarious
10. impetuous
11. ingenuous
12. nostalgic
13. ostentatious
14. sinuous
15. taciturn
16. truculent
17. unctuous
18. valid
19. versatile
20. volatile