| crude(adjective, rough, rude, violent, cruel) |
| cutthroat(adjective, mean, hard, harsh, cold) |
| demoniac(adjective, evil, nasty, harsh, violent) |
| destructive(adjective, aper, demoniac, annihilative) |
| eerie(adjective, weird, not human) |
| emotionless(adjective, bad, cold, detached, unfriendly) |
| flinty(adjective, evil, nasty, harsh, vicious) |
| gruesome |
| horrifying |
| icy(adjective, hard, tough, severe, temper) |
| impassible(adjective, bad, temper, cold, negative) |
| impersonal(adjective, temper, cold, negative, unfriendly) |
| inconsiderate(adjective, mean, ill, hostile, unfriendly) |
| indurate(adjective, bad, cold, aloof, no feelings) |
| inexorable(adjective, mean, hard, tough, evil) |
| iron-hearted(adjective, bad, hard, tough, severe) |
| predatory(adjective, violent, cruel, vicious, fierce) |
| rancorous(adjective, mean, evil, nasty, harsh) |
| senseless(adjective, bad, hard, tough, severe) |
| sinful(adjective, evil, nasty, harsh, offensive) |