prefix puzzler

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Across
  1. 2. not pleased or happy
  2. 3. impolite
  3. 5. to play again
  4. 6. it cannot be done
  5. 7. awesome and almost unbelievable
  6. 9. not perfect
  7. 11. to heat ahead of time
  8. 13. never discovered before
  9. 15. not able to be seen
  10. 16. not considering others feelings
Down
  1. 1. without fat
  2. 2. strange or weird
  3. 4. not making any sense
  4. 8. try again
  5. 10. to view ahead of time
  6. 12. safe to eat or drink
  7. 14. to visit again