opposite adjectives

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Across
  1. 2. neat
  2. 5. cool
  3. 8. tall
  4. 10. weak
  5. 11. full
  6. 14. light
  7. 15. dirty
  8. 16. small
  9. 17. short
  10. 18. young
Down
  1. 1. quiet
  2. 3. difficult
  3. 4. fast
  4. 6. low
  5. 7. ugly
  6. 9. fat
  7. 12. traditional
  8. 13. thin