Twilight

4. incapable of being fully explored or understood (chap 5, pg.94)
8. with no particular purpose, reason, or foundation (chap 2, pg.41)
9. distress or embarrassment at having failed or been humiliated (chap 4, pg.65)
12. an ugly, twisted expression on a person's face, typically expressing disgust, pain, or wry amusement (chap 2, pg.42)
14. extremely small (chap 5, pg.96)
17. having or showing no skill (chap 6, pg. 118)
18. impossible to understand (chap 5, pg.87)
19. noisy, energetic, and cheerful (chap 8, pg.144)

1. making one extremely angry and impatient (chap 7, pg.123)
2. make (someone) unable to think clearly (chap 5, pg.83)
3. extreme or irrational fear of confined places (chap 1, pg.14)
5. a scene of uproar and confusion (chap 3, pg.53)
6. breathe at an abnormally rapid rate (chap 8, pg.152)
7. expressed in an incomprehensible way (chap 8, pg. 161)
10. the action or state of being unfaithful to a spouse (chap 7, pg.124)
11. feeling or expressing great happiness (chap 4, pg.73)
13. having or showing a habitually forgetful disposition (chap 7, pg.131)
15. not transparent (chap 2, pg. 29)
16. common or wide spread (chap 1, pg.7)