| harmful(adjective, negative, harmful, injurious, damaging) |
| sinister(adjective, nasty, sorrow, awful, terrible) |
| destructive(adjective, bad, harmful, injurious, deadly) |
| evil(adjective, mean, bad, nasty, negative) |
| pernicious(adjective, mean, bad, nasty, negative) |
| baneful(adjective, bad, negative, harmful, injurious) |
| injurious(adjective, mean, nasty, negative, wicked) |
| malignant(adjective, mean, bad, evil, nasty) |
| deleterious(adjective, mean, evil, nasty, negative) |
| noxious(adjective, mean, bad, evil, nasty) |
| detrimental(adjective, mean, bad, evil, nasty) |
| deadly(adjective, bad, evil, harmful, injurious) |
| menacing(adjective, critical, black, threatening, injurious) |
| bad(adjective, awful, terrible, negative, harmful) |
| damaging(adjective, negative, harmful, injurious, deadly) |
| dangerous(adjective, bad, evil, dark, gloomy) |
| hurtful(adjective, evil, negative, harmful, injurious) |
| ominous(adjective, warning, foreboding, threatening, menacing) |
| poisonous(adjective, mean, bad, evil, nasty) |
| dire(adjective, dark, awful, terrible, gloomy) |