| nasty(adjective, cruel, unkind, upsetting, dangerous) |
| nocuous(adjective, cruel, negative, unkind, distressing) |
| ravaging |
| sanguinary(adjective, aper, demoniac, murderous, annihilative) |
| terrible(adjective, evil, dangerous) |
| wicked(adjective, evil, dangerous) |
| withering |
| alarming(adjective, dangerous, arouse bad emotions) |
| amorphous(disorder, confusion, mess, muddle, jumble) |
| bad to the bone |
| consumptive(adjective, harmful, injurious, damaging, devastating) |
| corrupting(distressing, harmful, injurious, damaging, inexpedience) |
| deathly(adjective, dangerous) |
| disapproving(negative, uncomplimentary) |
| disparaging(adjective, negative, critical, disapproving, uncomplimentary) |
| erosive(adjective, negative, critical, caustic, disparaging) |
| fierce(adjective, severe, rough, harsh, awful) |
| hazardous(adjective, severe, rude, awful, heavy) |
| incendiary(verb, destruction, injurious, damaging, destroying) |
| inhuman(adjective, aper, demoniac, annihilative) |