The weird the wonderful and the unexpected

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Across
  1. 3. difficul to understand
  2. 7. worries or issues
  3. 9. when two or more things aren't the same
  4. 10. the main subject of art, writing, music, or conversation
  5. 11. life
  6. 16. intense surprise, disgust, or horror
  7. 17. not planned
  8. 19. a person who creates or writes a book
Down
  1. 1. an imagined idea of magical or unreal worlds
  2. 2. an average understanding
  3. 3. a low understanding
  4. 4. doing something in a cheerful way
  5. 5. extreamly good
  6. 6. an extensive understanding
  7. 8. when two or more things are simmilar in a way
  8. 12. to travel and examine something carefully
  9. 13. something strange or unusual
  10. 14. something you read
  11. 15. a catagory or style
  12. 18. an array of numbers, symbols, or expressions