| implacability(ruthlessness, pitilessness, mercilessness, relentlessness) |
| implacableness(ruthlessness, pitilessness, mercilessness, relentlessness) |
| inappropriateness(unimportance, triviality, insignificance) |
| incompliance(ruthlessness, pitilessness, mercilessness, relentlessness) |
| incompliancy(ruthlessness, pitilessness, mercilessness, relentlessness) |
| indomitability(ruthlessness, pitilessness, mercilessness, relentlessness) |
| inflexibleness(ruthlessness, pitilessness, mercilessness, relentlessness) |
| insensibility(noun, cruelty, harshness, unkindness, callousness) |
| insignificance(noun, disregard, indifference, detachment, unimportance) |
| intransigence(ruthlessness, pitilessness, mercilessness, relentlessness) |
| intransigency(ruthlessness, pitilessness, mercilessness, relentlessness) |
| irrelevance(unimportance, triviality, insignificance) |
| malice(noun, cruelty, harshness, unkindness, callousness) |
| maliciousness(noun, violence, cruelty, coldness, viciousness) |
| malignity(noun, cruelty, harshness, unkindness, callousness) |
| masochism(noun, cruelty, harshness, unkindness, callousness) |
| mulishness(ruthlessness, pitilessness, mercilessness, relentlessness) |
| murderousness(noun, cruelty, harshness, unkindness, callousness) |
| nastiness(noun, cruelty, harshness, unkindness, callousness) |
| obstinacy(ruthlessness, pitilessness, mercilessness, relentlessness) |