| coldblooded(adjective, hard, careless, apathetic, unfeeling) |
| composed(adjective, calm, cool, detached, blank) |
| controlled(adjective, unexcitable) |
| deadly |
| dull(adjective, tough, rational, straightforward, sober) |
| expressionless(adjective, person, feelings, blank, unemotional) |
| fell(adjective, harsh, violent, cruel, vicious) |
| feral(adjective, mean, harsh, violent, cruel) |
| firm(rocky, pebbly, flinty) |
| hostile(adjective, person, mean, tough, harsh) |
| immovable(adjective, cool, detached, blank, sober) |
| inexcitable(adjective, cool, blank, aloof, unemotional) |
| insusceptible(adjective, cool, blank, aloof, unemotional) |
| matter-of-fact(adjective, cool, cold, cruel, rational) |
| murderous |
| nasty(adjective, mean, hard, cool, unpleasant) |
| nonemotional(adjective, cool, detached, blank, sober) |
| obtuse(adjective, hard, unfeeling, unsympathetic, hardened) |
| premeditated(adjective, cold, careful, thoughtful, cautious) |
| purposeful(adjective, careful, thoughtful, cautious, planned) |