| sulphurous |
| unfriendly(adjective, mean, nasty, hostile, bitter) |
| unhealthy(adjective, harmful, injurious, damaging, noxious) |
| vindictive(adjective, nasty, wicked, hostile, bitter) |
| astringent |
| damaging(adjective, harmful, injurious, destructive, detrimental) |
| dangerous(adjective, wicked, rotten, harmful, fatal) |
| despiteful(adjective, mean, nasty, hateful, spiteful) |
| detrimental(adjective, mean, bad, evil, nasty) |
| distressing(adjective, wicked) |
| embittered(adjective, hard, love, severe, nasty) |
| intense(adjective, severe, nasty, wicked, hostile) |
| mean(adjective, nasty, wicked, unfriendly, hateful) |
| pestilent(adjective, help, unhealthy, deadly, fatal) |
| pestilential(adjective, help, unhealthy, deadly, noxious) |
| poignant(adjective, evil, nasty, harsh, vicious) |
| poison(adjective, help, poisonous, lethal) |
| splenetic(adjective, hostile) |
| sullen(adjective, severe, nasty, hostile, resentful) |
| acidulous |