Across
- 3. nonprofit
- 5. postpone
- 7. undone
- 9. triangle
- 10. confine
- 11. descend
- 12. equivalent
- 13. international
- 15. submarine
- 18. circumference
- 19. misfit
- 20. intravenous
- 21. symphony
Down
- 1. synchronize
- 2. introvert
- 4. antebellum
- 5. premature
- 6. supernatural
- 8. antibody
- 11. disappear
- 14. extraterrestrial
- 16. bicycle
- 17. semicircle
- 18. common
- 19. malevolent