| uncongenial(adjective, coldhearted) |
| unflinching(adjective, mean, harsh, cruel, determined) |
| ungracious |
| abusive |
| aggressive(adjective, nasty, violent, cruel, vicious) |
| austere(adjective, appearance, hard, severe, harsh) |
| bad(adjective, evil, unpleasant, corrupt, vicious) |
| bitter(adjective, evil, nasty, harsh, unpleasant) |
| blank(adjective, person, feelings, emotions, rocky) |
| cool |
| deadly |
| demanding(adjective, tough, severe, rough, difficult) |
| depraved(adjective, evil, nasty, harsh, corrupt) |
| disagreeable(adjective, unpleasant, vicious, painful, distressing) |
| distressing(adjective, tough, severe, rough, difficult) |
| dogged(adjective, appearance, harsh, terrible, cruel) |
| expressionless(adjective, person, feelings, emotions, rocky) |
| forbidding(adjective, person, appearance, hard, tough) |
| foul(adjective, wicked) |
| grisly(adjective, appearance, terrible, hopeless) |