| incongruous(adjective, antagonistic, contrary, incompatible, inconsistent) |
| indisposed(adjective, antagonistic, loath, opposed) |
| inhospitable(adjective, mean, nasty, unfriendly, hateful) |
| insubordinate(adjective, negative, hostile, different, adverse) |
| intractable(adjective, negative, hostile, different, adverse) |
| invalidating(adjective, bad, weak, gloomy) |
| irreconcilable(adjective, hostile, counter, different, antagonistic) |
| jaundiced(adjective, bad, weak, gloomy) |
| litigant(noun, match, opposition, rival, opponent) |
| nasty(adjective, mean, unfriendly, hateful, bitter) |
| naysayer |
| naysaying(adjective, bad, weak, gloomy, unfriendly) |
| negating(adjective, counter, antagonistic, contrary, conflicting) |
| neutralizing(adjective, bad, weak, gloomy) |
| no go(expression, adjective, counter, unfriendly, contrary) |
| nonconforming(adjective, negative, hostile, different, adverse) |
| nonconformist(adjective, negative, hostile, different, adverse) |
| noncooperative |
| nugatory(adjective, bad, weak, gloomy) |
| nullifying(adjective, counter, antagonistic, contrary, conflicting) |