prefix and suffix

12345678910111213141516
Across
  1. 3. friendship
  2. 4. misfire
  3. 6. higher
  4. 8. nonsense
  5. 10. enjoyment
  6. 11. extraodirary
  7. 13. disagree
  8. 14. quickly
  9. 15. prefix
  10. 16. submarine
Down
  1. 1. fearless
  2. 2. attraction
  3. 3. superstar
  4. 5. interact
  5. 6. wooden
  6. 7. kindness
  7. 9. humor
  8. 12. comfortable
  9. 15. postpone