Inclined to adverse criticism
(Adjective)
Synonyms:
  1. carping
  2. captious
  3. casuistic
  4. caviling
  5. hair-splitting
  6. elusive
  7. evasive
  8. hairsplitting
  9. nit-picking
  10. prevaricative
  11. sophistic
  12. sophistical
  13. trifling