| insalubrious(adjective, harmful, injurious, poisonous, toxic) |
| malicious(adjective, mean, bad, wrong, evil) |
| sinister(adjective, bad, evil, negative, harmful) |
| unfavourable |
| useless(adjective, useless, arouse bad emotions) |
| virulent(adjective, mean, bad, evil, nasty) |
| wicked(adjective, mean, bad, wrong, evil) |
| calamitous(adjective, evil, adverse, harmful, injurious) |
| devastating(adjective, bad, evil, wicked, harmful) |
| disturbing(adjective, harmful, damaging, unfavorable, arouse bad feelings) |
| fatal(adjective, bad, evil, harmful, dangerous) |
| hard(adjective, adverse) |
| malefic(adjective, negative, harmful, injurious, damaging) |
| opposing(adjective, bad, weak, gloomy, hostile) |
| perilous(adjective, adverse, harmful, dangerous, injurious) |
| prejudicious |
| troublesome(adjective, adverse, damaging, disparaging, hurtful) |
| unhealthful(adjective, offensive, foul, unhealthy, harmful) |
| wretched(adjective, bad) |
| counteractive(bad, weak, gloomy) |