Synonyms to hard heart

armor, Philistinism, aegis, armament, armature, armor plate, bard, beaver, body armor, brassard, breastplate, buckler, bulletproof vest, callosity, callousness, callus, chain armor, chain mail, chitin, cloak, coat of mail, coif, corselet, cortex, cover, cuirass, elytron, episperm, flintiness, formidable defenses, gas mask, gauntlet, guard, habergeon, hard shell, hardenedness, hardheartedness, hardness, hardness of heart, harness, hauberk, headpiece, heart of stone, helm, helmet, imperviousness, induration, insensitiveness, insensitivity, inuredness, jamb, lorica, lorication, mail, mantle, nasal, needles, obduracy, obdurateness, panoply, pericarp, plate, plate armor, protection, protective covering, rhinoceros hide, rondel, safeguard, screen, scute, scutum, security, shell, shelter, shield, shroud, spines, stoniness, suit of armor, test, testa, thick skin, veil, visor, ward, analgesia, anesthesia, coldbloodedness, coldheartedness, coldness, deadness, density, dullness, durity, electronarcosis