| serpentine |
| slithering |
| sour(adjective, mean, nasty, unfriendly, hateful) |
| surly(adjective, mean, nasty, unfriendly, hateful) |
| unfriendly(adjective, mean, nasty, angry, antagonistic) |
| unkind(adjective, mean, nasty, unfriendly, hateful) |
| unpropitious(adjective, mean, nasty, unfriendly, hateful) |
| unsociable(adjective, mean, nasty, unfriendly, hateful) |
| unsympathetic(adjective, mean, nasty, unfriendly, hateful) |
| unwelcoming(adjective, mean, nasty, unfriendly, hateful) |
| vengeful(adjective, malicious, venomous) |
| vindictive(adjective, malicious, venomous) |
| vitriolic(adjective, mean, nasty, unfriendly, hateful) |
| warlike(adjective, mean, nasty, unfriendly, hateful) |
| acrimonious(angry, offended, indignant) |
| aggrieved(angry, offended, indignant) |
| allergic(mean, nasty, unfriendly, angry, antagonistic) |
| annoyed(angry, offended, indignant) |
| antagonistic(mean, nasty, unfriendly, aggressive) |
| bad-natured(adjective, malicious, venomous) |