Spelling List #24 (The prefix "un") Keep this list at home to study. Students should use these 20 words to complete the weekly spelling activity. 1. unopened 2. untrue 3. unwrap 4. unbutton 5. unsafe 6. uneven 7. unlock 8. unwilling 9. unfair 10. unpack 11. unhappy 12. unplug 13. unkind 14. untie 15. uncover 16. unselfish 17. unavailable 18. unsure 19. unhealthy 20. unfasten