Divergent

2. A deep fissure in a surface (noun)
4. negation The act of rejecting something (noun)
6. Roughly almond-shaped mass of grey matter inside each cerebral hemisphere, involved with the experiencing of emotions (noun)
7. A friendly relationship (noun)
9. State of being homesick (adjective)
11. Pitifully sad and abandoned or lonely (adjective)
12. Sparing in the use of words, abrupt (adjective)
13. Tending to be different (adjective)
14. Away from the appropriate, planned or expected course (adverb & adjective)
15. To promote a belief or course of action (verb)
16. Relating to deep inward feelings rather than to the intellect (adjective)
17. A mass departure of people (noun)
19. Showing great knowledge (adjective)

1. Either of two masses of grey matter lying between the cerebral hemispheres relaying sensory information and acting as a center for pain perception (noun)
3. Deriving pleasure from inflicting pain (adjective)
5. Mutual trust and friendship (noun)
8. Too great to be overcome (adjective)
10. Quality of being honest (noun)
13. Showing fearlessness (adjective)
18. Self-assertive in a rude, noisy, or overbearing way (adjective)