| wicked(adjective, bad, corrupt, negative, immoral) |
| grievous(adjective, severe, painful) |
| hostile(adjective, person, mean, bad, wrong) |
| not good |
| risky(adjective, severe, rude, awful, terrible) |
| unsafe(adjective, risky, dangerous, injurious, damaging) |
| venomous(adjective, bad, evil, dangerous, injurious) |
| pestiferous(adjective, bad, injurious, damaging, deadly) |
| suicidal(adjective, violent, cruel, injurious, damaging) |
| unfavourable |
| cataclysmic(adjective, dreadful, unfortunate, injurious, damaging) |
| distressing(adjective, awful, terrible, cruel, unkind) |
| disturbing(adjective, awful, terrible, dreadful, unfavorable) |
| hazardous(adjective, risky, dangerous, injurious, unsafe) |
| inauspicious |
| malefic(adjective, negative, threatening, injurious, damaging) |
| menacing(adjective, risky, threatening, dangerous, injurious) |
| unfavorable(adjective, contrary, dreadful, threatening, unfortunate) |
| unhealthful(adjective, offensive, foul, disgusting, injurious) |
| untoward |