| calm(adjective, restrained, unconcerned, subdued, impassive) |
| cantankerous(adjective, hard, tough, severe, cold) |
| carefree apathetic(expression, adjective, indifferent, unsympathetic, inattentive) |
| casual(adjective, calm, indifferent, restrained, detached) |
| churlish(adjective, hard, tough, severe, cold) |
| closefisted |
| cold shoulder(adjective, person, feelings) |
| collected(adjective, calm, restrained, subdued, impassive) |
| compassionless(adjective, hard, cruel, unfeeling, unsympathetic) |
| controlled |
| critical |
| crotchety(adjective, hard, tough, severe, cold) |
| crude |
| cutthroat(adjective, mean, severe, harsh, cruel) |
| dead-hearted(adjective, bad, cold, aloof, no feelings) |
| dead-pan(adjective, bad, cold, aloof, no feelings) |
| deadened(adjective, hard, tough, severe, cold) |
| deadpan(adjective, detached, impassive, unresponsive, laid-back) |
| deaf(adjective, indifferent, unsympathetic, inattentive, uninterested) |
| degenerate(adjective, evil, nasty, harsh, vicious) |