Words Connotation Group 3

Hi,
I need help understanding the proper “Connotation” of “group 3” words.
I try my best to identify it, but I am unsure whether I am right or wrong. Please correct me If I am wrong.

  1. abate (verb) → neutral
  2. abjure (verb) → neutral
  3. anomalous (adjective) → neutral
  4. antipathy (noun) → neutral
  5. arcane (adjective) → neutral
  6. arduous (adjective) → negative
  7. artless (adjective) → neutral
  8. ascetic (adjective) → negative
  9. assuage (verb) → neutral
  10. betray (verb) → neutral
  11. bucolic (adjective) → neutral
  12. burgeon (verb) → neutral
  13. cacophonous (adjective) → negative
  14. canonize (verb) → neutral
  15. censure (verb) → neutral
  16. chicanery (noun) → neutral
  17. coalesce (verb) → neutral
  18. cogent (adjective) → neutral
  19. compelling (adjective) → positive
  20. contend (verb) → neutral
  21. copious (adjective) → neutral
  22. cosmopolitan (adjective) → neutral
  23. deference (noun) → neutral
  24. desultory (adjective) → neutral
  25. diffident (adjective) → negative
  26. dilatory (adjective) → neutral
  27. equivocate (verb) → neutral
  28. polarize (verb) → neutral
  29. prodigal (adjective) → neutral
  30. verbose (adjective) → neutral