Synonyms: hardhearted, heartless
Definition: lacking in feeling or pity or warmth
Similar words: granitic, obdurate, stony, flint, flinty
Definition: showing unfeeling resistance to tender feelings
Usage: his flinty gaze; the child's misery would move even the most obdurate heart
Synonyms: heartless
Definition: devoid of courage or enthusiasm
Similar words: spiritless
Definition: lacking ardor or vigor or energy
Usage: a spiritless reply to criticism