| unbecoming(adjective, wrong, strange, inadequate, useless) |
| uncharacteristic(irrelevant, repugnant, unrelated) |
| unconnected(adjective, strange, odd, inappropriate, bizarre) |
| uncoordinated(adjective, strange, odd, inappropriate, bizarre) |
| unmeet(adjective, inadequate, useless, inappropriate, unhealthy) |
| unmixable(adjective, harsh, different, antagonistic, contrary) |
| unmusical(adjective, hard, severe, sharp, rough) |
| unsociable(adjective, unfriendly, disagreeable) |
| untypical(adjective, nonconforming) |
| variant(adjective, separate, distinct, different, tense) |
| various(adjective, separate, distinct, different, tense) |
| varying(adjective, contrary, disagreeing, discrepant) |
| acrid(adjective, hard, severe, sharp, flat) |
| against(disgusting, hostile, different, antagonistic, contrary) |
| antagonizing |
| anti(hostile, different, antagonistic, contrary, opposite) |
| antipathetical |
| antipodal(adjective, antagonistic, contrary, discordant, inconsistent) |
| apples and oranges(expression, adjective, idiom, distinct, different) |
| asperous(adjective, hard, severe, sharp, flat) |