| contentious(mean, nasty, hostile, unfriendly, antagonistic) |
| contradictory(adjective, negative, disgusting, hostile, antagonistic) |
| cross |
| discordant(adjective, negative, hostile, different, adverse) |
| evil(adjective, offensive, negative, foul, harmful) |
| hurtful(adjective, negative, antagonistic, contrary, harmful) |
| malicious(adjective, mean, bad, wrong, evil) |
| malign(adjective, injurious, hurtful) |
| malignant(adjective, mean, nasty, offensive, cold) |
| nocuous(adjective, harmful, injurious, damaging, unfavorable) |
| opponent |
| sinister(adjective, negative, harmful, injurious, damaging) |
| warlike(adjective, mean, nasty, cold, hostile) |
| adversary |
| allergic(adjective, mean, hostile, counter, unfriendly) |
| averse(adjective, bad, disgusting, vile, hostile) |
| contrarious(adjective, contrary) |
| dissident(adjective, negative, hostile, different, adverse) |
| exclusive |
| gaunt |