Jackson W

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Across
  1. 1. (difficult)
  2. 4. (strong)
  3. 6. (impolite)
  4. 8. (hot)
  5. 9. (fast)
  6. 11. (slow)
Down
  1. 2. (closed)
  2. 3. (cold)
  3. 4. (weak)
  4. 5. (easy)
  5. 7. (open)
  6. 10. (polite)