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