noun
an absence of concern for the welfare of others
• Syn: ↑coldheartedness, ↑hardheartedness
• Derivationally related forms: ↑hardhearted (for: ↑hardheartedness), ↑coldhearted (for: ↑coldheartedness), ↑heartless
• Hypernyms: ↑unconcern
• Hyponyms: ↑cruelty, ↑mercilessness, ↑pitilessness, ↑ruthlessness
Useful english dictionary. 2012.