Antonyms

Across

3. Punish
8. Smile
11. past
12. Failure
14. Smooth
15. Wild
16. Old
17. Weak
18. Freeze
19. Exciting
20. Sharp

Down

1. Arrive
2. Common
4. simple
5. Better
6. fear
7. Polite
9. Forget
10. Artificial
12. Deep
13. Quiet
18. minimum