| nonchalance(noun, disregard, interest, lack, apathy) |
| pitilessness(noun, cruelty, harshness, unkindness, insensitivity) |
| ruthlessness(noun, violence, severity, torture, cruelty) |
| stiffness(noun, roughness, hardness, unevenness, thickness) |
| anesthesia(noun, insensibility) |
| boldness(noun, rudeness, coarseness, insolence, crudeness) |
| brutality(noun, violence, severity, torture, cruelty) |
| cold-bloodedness(noun, disregard, interest, lack, apathy) |
| detachment(noun, disregard, interest, lack, apathy) |
| dullness(noun, insensibility) |
| impenitence(noun, impenitence) |
| induration |
| insentience(noun, insensibility) |
| narcosis(noun, insensibility) |
| obduracy(noun, ruthlessness, pitilessness, mercilessness) |
| remorselessness(noun, cruelty, coldness, hardheartedness, ruthlessness) |
| rigidity(noun, hardness, ruthlessness, pitilessness, mercilessness) |
| severity(noun, violence, torture, cruelty, coarseness) |
| solidity(noun, hardness) |
| unconcern(noun, disregard, interest, lack, apathy) |