adjectives

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Across
  1. 7. of great significance or value
  2. 9. different from one another
  3. 10. added
  4. 12. able to be used
  5. 14. of or relatively great size
  6. 15. much effort or skill to accomplish
  7. 16. relating to the mind
  8. 17. more than two but not many
Down
  1. 1. belonging to the past
  2. 2. forming an essential foundation
  3. 3. tending or designed to stick
  4. 4. having a high degree of heat
  5. 5. recognized
  6. 6. able to be used or obtained
  7. 8. having lived for a long time
  8. 11. offensively impolite
  9. 13. joined together politically
  10. 17. fearful frightened.
  11. 18. preceding a singular noun
  12. 19. having the power