| acrimonious |
| antagonistic |
| cancerous(adjective, baneful) |
| contaminated(adjective, unhealthy) |
| corroding(injurious, damaging, destructive) |
| crippling(adjective, injurious, damaging, destructive) |
| critical(adjective, dangerous) |
| cutting(adjective, cruel, unkind, upsetting) |
| depraved |
| despiteful(adjective, mean, nasty, attitude, violent) |
| disadvantageous(cruel, unkind, distressing, upsetting, harmful) |
| disastrous(adjective, threatening, injurious, damaging, destructive) |
| diseased(adjective, unhealthy) |
| distressing(cruel, unkind, upsetting, harmful, damaging) |
| fetid(adjective, bad, offensive, foul, disgusting) |
| filthy(adjective, bad, taste, offensive, awful) |
| gangrenous(adjective, unhealthy) |
| hazardous(adjective, harmful, dangerous, injurious, detrimental) |
| hellish(adjective, bad, taste, offensive, awful) |
| high(adjective, bad, foul, decayed, stinking) |