| fatal(adjective, dangerous, deadly, diseased, lethal) |
| detrimental(adjective, mean, bad, evil, nasty) |
| noxious(adjective, help, mean, bad, evil) |
| baneful(adjective, help, offensive, foul, harmful) |
| deleterious(adjective, mean, bad, evil, nasty) |
| sinister(adjective, bad, evil, nasty, negative) |
| injurious(adjective, mean, bad, evil, nasty) |
| bad(adjective, mean, evil, nasty, corrupt) |
| dangerous(adjective, bad, heavy, treacherous, unsafe) |
| lethal(adjective, dangerous, deadly, diseased) |
| cancerous(adjective, diseased, spreading) |
| disadvantageous(adjective, injurious, damaging, destructive, inexpedience) |
| hostile(adjective, mean, nasty, cold, negative) |
| mean(adjective, animal, nasty, attitude, cruel) |
| mischievous(adjective, mean, evil, nasty, wicked) |
| toxic(adjective, offensive, foul, unhealthy, dangerous) |
| mortal(adjective, dangerous, deadly, diseased) |
| antagonistic(adjective, mean, nasty, cold, negative) |
| damaging(adjective, bad, negative, vile, hateful) |
| pestilential(adjective, help, unhealthy, deadly, diseased) |