| callousness(noun, ruthlessness, pitilessness, mercilessness) |
| cold-bloodedness(ruthlessness, pitilessness, mercilessness, relentlessness) |
| cold-heartedness(noun, ruthlessness, pitilessness, mercilessness) |
| counterblow(noun, attack, grievance, retaliation, vengeance) |
| counterinsurgency(noun, attack, grievance, retaliation, vengeance) |
| counterplay(noun, attack, grievance, retaliation, vengeance) |
| dislike(noun, hatred, hate, antipathy, spite) |
| dogmatism(obstinacy, stubbornness, rigor) |
| eye for an eye(noun, expression, idiom, attack, grievance) |
| fight(noun, attack, grievance, retaliation, vengeance) |
| firmness |
| getting even(noun, expression, attack, grievance, retaliation) |
| grievance(noun, attack, retaliation, vengeance, retribution) |
| hardheartedness(noun, ruthlessness, pitilessness, mercilessness) |
| harshness(ruthlessness, pitilessness, mercilessness, relentlessness) |
| hate(noun, hatred, hostility, antipathy, spite) |
| hatred(noun, hate, antipathy, spite, meanness) |
| heartlessness(ruthlessness, pitilessness, mercilessness, relentlessness) |
| ill blood(expression, idiom, hate) |
| imperviousness |