| demoniacal(adjective, bad behavior, aroused negative) |
| diabolical(adjective, bad behavior, aroused negative) |
| evil(adjective, bad behavior, aroused negative) |
| evil-minded(adjective, bad behavior, aroused negative) |
| fiendish(adjective, bad behavior, aroused negative) |
| flagituous(adjective, bad behavior, aroused negative) |
| flat(adjective, calm, dull, tough, indifferent) |
| gothly(adjective, bad behavior, aroused negative) |
| immovable(adjective, detached, blank, unfeeling, impassive) |
| impervious(adjective, bad, cold, aloof, no feelings) |
| inhuman(adjective, bad, cold, detached, unfriendly) |
| lacking interest |
| lukewarm(adjective, cool, indifferent, unfriendly, aloof) |
| marble(adjective, bad, cold, detached, aloof) |
| nonemotional(adjective, detached, blank, unfeeling, impassive) |
| ruthless(adjective, insensitive) |
| soulless |
| straight(adjective, cool, cold, indifferent, detached) |
| taciturn(adjective, cool, unfriendly, blank, aloof) |
| thick-skinned(adjective, detached, blank, unfeeling, impassive) |