The Lesson

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Across
  1. 2. strong sense
  2. 5. to give a small and often mean or sly laugh
  3. 6. solidly established
  4. 11. very thin or transparent
  5. 13. showing or able to cause strong feelings
  6. 15. to prod lightly : urge into action
  7. 16. someone or something that is laughed at
  8. 17. to become completely involved in
  9. 19. showing doubt or unwillingness
  10. 21. covered with growing trees
Down
  1. 1. the way a person conducts themselves
  2. 3. planned or done in a rough or unskilled way
  3. 4. ready to hurt others : without humane feelings
  4. 7. a person's attitude as it affects what he or she says or does
  5. 8. to be not the same : be unlike
  6. 9. to strike heavily or again and again
  7. 10. deeply confused
  8. 12. a rare or important fact or event
  9. 14. to begin to practice or use
  10. 18. a very wise person
  11. 20. a particular feeling or way of thinking about something