| callousness(noun, cruelty, insensitivity, coldness, viciousness) |
| adamancy(ruthlessness, pitilessness, mercilessness) |
| aloofness(noun, coldness, unfriendliness, taciturnity, iciness) |
| atrociousness(cruelty, viciousness) |
| atrocity(cruelty, coldness, viciousness, hardheartedness, pitilessness) |
| barbarism(cruelty, coldness, viciousness, hardheartedness, pitilessness) |
| bloodthirstiness(cruelty, coldness, viciousness, hardheartedness, pitilessness) |
| brutality(cruelty, coldness, viciousness, hardheartedness, pitilessness) |
| brutishness(cruelty, coldness, viciousness, hardheartedness, pitilessness) |
| bullheadedness(ruthlessness, pitilessness, mercilessness) |
| cold-bloodedness(noun, cruelty, coldness, viciousness, hardheartedness) |
| coldness(noun, insensitivity, unfriendliness, hardheartedness, pitilessness) |
| contumacy(ruthlessness, pitilessness, mercilessness) |
| coolness(coldness, unfriendliness) |
| cruelty(noun, insensitivity, coldness, viciousness, hardheartedness) |
| die-hardism(ruthlessness, pitilessness, mercilessness) |
| distantness(noun, coldness, unfriendliness, taciturnity) |
| doggedness(ruthlessness, pitilessness, mercilessness) |
| emotionlessness(noun, coldness, unfriendliness, hardheartedness, pitilessness) |
| ferocity(cruelty, coldness, viciousness, hardheartedness, pitilessness) |