| vicious(adjective, mean, hard, evil) |
| lethal(adjective, evil, harmful, injurious) |
| malign(mean, nasty, negative, malicious) |
| malevolent(adjective, mean, nasty, negative) |
| toxic(adjective, evil, harmful, injurious) |
| wicked(adjective, mean, nasty, negative) |
| offensive(adjective, severe, rude, unpleasant) |
| sinister(adjective, nasty, offensive, negative) |
| antagonistic(adjective, mean, wrong, evil) |
| hateful(adjective, mean, wrong, evil) |
| hostile(adjective, mean, wrong, evil) |
| pestilential(adjective, evil, harmful, injurious) |
| fatal(adjective, evil, harmful, injurious) |
| devastating(adjective, evil, wicked, harmful) |
| disturbing(adjective, mean, wrong, severe) |
| iniquitous(distressing, harmful, damaging, deadly) |
| mortal(adjective, evil, harmful, injurious) |
| pestiferous(adjective, evil, harmful, injurious) |
| unfriendly(adjective, mean, wrong, evil) |
| surly(adjective, mean, wrong, evil) |