Across
- 3. significant
- 4. useless
- 8. productive
- 11. sensitive
- 14. acceptable
- 15. mysterious
- 16. reliable
- 18. spicy
- 19. creative
- 20. environmental
- 21. impressive
- 22. hopeful
- 23. unrealistic
Down
- 1. scientific
- 2. dependent
- 5. economical
- 6. predictable
- 7. enjoyable
- 9. challenging
- 10. considerable
- 11. strong
- 12. natural
- 13. accessible
- 17. harmless