| sickly(adjective, offensive, foul, disgusting, harmful) |
| pestiferous(offensive, foul, disgusting, harmful, poisonous) |
| bad |
| contaminated(adjective, unhealthy, unwholesome) |
| damaging(adjective, harmful, injurious, detrimental) |
| disgusting(adjective, offensive, foul, unclean, overpowering) |
| hurtful(adjective, offensive, foul, disgusting, harmful) |
| narcotic |
| virulent(adjective, harmful, injurious, detrimental, unwholesome) |
| morbid(adjective, revolting, harmful, injurious, detrimental) |
| morbific |
| pestilent(adjective, unhealthy, harmful, poisonous, toxic) |
| rotten(adjective, harmful, injurious, detrimental, unwholesome) |
| unsalutary(adjective, health, unwholesome) |
| dangerous(adjective, offensive, foul, disgusting, harmful) |
| deadly(adjective, offensive, foul, disgusting, unhealthy) |
| defiled(adjective, unclean) |
| dingy(adjective, unclean) |
| dirty(adjective, unclean) |
| disagreeable |