| destructive(adjective, harmful, injurious, damaging, aper) |
| fatal(adjective, harmful, injurious, damaging, deadly) |
| baneful(adjective, harmful, injurious, damaging, deadly) |
| calamitous(adjective, harmful, injurious, damaging, deadly) |
| cataclysmic(adjective, harmful, injurious, damaging, deadly) |
| catastrophic(adjective, harmful, injurious, damaging, deadly) |
| damaging(adjective, harmful, injurious, deadly, fatal) |
| dire(adjective, harmful, injurious, damaging, deadly) |
| disastrous(adjective, harmful, injurious, damaging, deadly) |
| ruinous(adjective, harmful, injurious, damaging, deadly) |
| annihilative(adjective, harmful, injurious, damaging, deadly) |
| baleful(adjective, harmful, injurious, damaging, deadly) |
| cancerous(adjective, harmful, injurious, damaging, deadly) |
| consumptive(adjective, harmful, injurious, damaging, deadly) |
| cutthroat(adjective, harmful, injurious, damaging, deadly) |
| deadly(adjective, harmful, injurious, damaging, fatal) |
| deleterious(adjective, harmful, injurious, damaging, deadly) |
| detrimental(adjective, harmful, injurious, damaging, deadly) |
| devastating(adjective, harmful, injurious, damaging, deadly) |
| eradicative(adjective, harmful, injurious, damaging, deadly) |