Find opposite of adjectives

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Across
  1. 4. rude
  2. 6. weak
  3. 8. lazy
  4. 11. stupid
  5. 13. tight
  6. 14. noisy
  7. 16. sick
  8. 17. big
  9. 18. quick
  10. 19. cheap
Down
  1. 1. smooth
  2. 2. easy
  3. 3. modern
  4. 5. safe
  5. 7. sweet
  6. 9. present
  7. 10. boring
  8. 11. careless
  9. 12. deep
  10. 15. beautiful
  11. 20. wide