| disastrous(adjective, harmful, injurious, damaging, deadly) |
| evil(adjective, harmful, injurious, damaging, deadly) |
| extirpative(adjective, harmful, injurious, damaging, deadly) |
| fatal(adjective, harmful, injurious, damaging, deadly) |
| fell(adjective, harmful, injurious, damaging, deadly) |
| harmful(adjective, injurious, damaging, deadly, fatal) |
| hurtful(adjective, harmful, injurious, damaging, deadly) |
| injurious(adjective, harmful, damaging, deadly, fatal) |
| internecine(adjective, harmful, injurious, damaging, deadly) |
| lethal(adjective, harmful, injurious, damaging, deadly) |
| lethiferous(adjective, harmful, injurious, damaging, deadly) |
| mortal(adjective, harmful, injurious, damaging, deadly) |
| noisome(adjective, harmful, injurious, damaging, deadly) |
| noxious(adjective, harmful, injurious, damaging, deadly) |
| pernicious(adjective, harmful, injurious, damaging, deadly) |
| pestiferous(adjective, harmful, injurious, damaging, deadly) |
| pestilential(adjective, harmful, injurious, damaging, deadly) |
| slaughterous(adjective, harmful, injurious, damaging, deadly) |
| suicidal(adjective, harmful, injurious, damaging, deadly) |
| toxic(adjective, harmful, injurious, damaging, deadly) |