| mortal(adjective, bad, evil, harmful, dangerous) |
| nasty(adjective, mean, cruel, hateful, unkind) |
| nefarious(adjective, bad, evil, harmful, injurious) |
| objectionable(adjective, damaging, disparaging, hurtful, unwelcome) |
| ominous(cruel, unkind, upsetting) |
| opposed(hostile, unfriendly, antagonistic, contrary, unfavorable) |
| opposite(hostile, unfriendly, antagonistic, contrary, opposing) |
| pestiferous(adjective, bad, evil, harmful, injurious) |
| pestilential(adjective, bad, evil, harmful, injurious) |
| repellent(adjective, evil) |
| revolting(adjective, evil) |
| risky(adjective, harmful, dangerous, injurious, damaging) |
| slanderous(distressing, harmful, damaging) |
| treacherous(adjective, harmful, dangerous, injurious) |
| unhelpful(adjective, damaging, hurtful, arouse bad emotions) |
| unhygienic(adjective, harmful, injurious) |
| unprofitable(damaging, disparaging, hurtful, derogatory, unflattering) |
| unsafe(adjective, dangerous, injurious, damaging, destructive) |
| unwelcome(adjective, arouse bad emotions) |
| abominable(adjective, evil) |