| treacherous(adjective, malevolent) |
| uncool(adjective, mean, nasty, terrible, disgusting) |
| unfriendly(mean, nasty, unpleasant, dirty, disagreeable) |
| unkind(adjective, mean, nasty, unpleasant, dirty) |
| unpleasant(mean, nasty, dirty, disagreeable, malicious) |
| unpropitious(adjective, mean, nasty, unfriendly, hateful) |
| unsociable(adjective, mean, nasty, unfriendly, hateful) |
| unsympathetic(adjective, mean, nasty, unfriendly, hateful) |
| unwelcoming(adjective, mean, nasty, unfriendly, hateful) |
| vilifying |
| viperous(adjective, mean, nasty, dirty, unfriendly) |
| vitriolic(adjective, mean, nasty, unfriendly, hateful) |
| vixenish |
| vixenly |
| volant |
| warlike(adjective, mean, nasty, unfriendly, hateful) |
| waspish(adjective, mean, nasty, dirty, vicious) |
| zippy |
| abhorrent(adjective, nasty, terrible, disgusting, vicious) |
| abominable(adjective, nasty, terrible, disgusting, vicious) |