Word formation. Please. (3-25)

3. cheerful
4. practical
5. explanation
6. exciting
7. intelligent
8. bored
9. different
10. attractive
11. reliable
12. fearless
13. predictions
14. disobedient
15. flexible
16. patience
17. unsuccessful
18. probably
19. fortunately
20. energetic
21. glamour
22. loneliness
23. motivation
24. successful
25. except