| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | cold, cruel |
| Synonyms: | brutish, callous, cold-blooded, coldhearted, hard, hard-boiled, heartless, indifferent, inhuman, insensitive, intolerant, merciless, obdurate, pitiless, stony, uncaring, uncompassionate, unemotional, unfeeling, unkind, unsympathetic |
| Antonyms: | compassionate, kind, nice, softhearted, warm |
| Main Entry: | callous |
| Part of Speech: | adjective |
| Definition: | cruel, insensitive |
| Synonyms: | apathetic, blind to, careless, case-hardened, cold, cold-blooded, deaf to, hard, hard-bitten, hard-boiled, hardened, hardhearted, heartless, impassive, impenitent, indifferent, indurated, inflexible, insensate, insensible, insensitive, insentient, inured, obdurate, soulless, spiritless, stiff, stony, stubborn, thick-skinned, torpid, tough, toughened, unaffected, unbending, uncaring, uncompassionate, unconcerned, unfeeling, unimpressionable, unresponsive, unsusceptible, unsympathetic |
| Notes: | callus is a hard patch of skin; callous is an adjective meaning 'indifferent to suffering' or 'hardened' |
| Antonyms: | compassionate, feeling, kind, nice, sensitive, sympathetic, tender |
| Main Entry: | cold-blooded |
| Part of Speech: | adjective |
| Definition: | cruel, heartless |
| Synonyms: | barbarous, brutal, callous, cold, dispassionate, hard-boiled, hard-hearted, hardened, imperturbable, inhuman, matter-of-fact, merciless, obdurate, pitiless, relentless, ruthless, savage, steely, stony-hearted, uncompassionate, unemotional, unfeeling, unmoved |
| Antonyms: | compassionate, demonstrative, feeling, friendly, merciful, nice, sympathetic, warm-blooded |
| Main Entry: | cold-hearted |
| Part of Speech: | adjective |
| Definition: | unfeeling |
| Synonyms: | cold, detached, hard, hard-hearted, harsh, heartless, indifferent, insensitive, stony-hearted, uncaring, unemotional, unfriendly, unkind, unloving, unsympathetic |
| Antonyms: | warm-hearted |
| Main Entry: | cruel |
| Part of Speech: | adjective |
| Definition: | vicious, pitiless; causing pain |
| Synonyms: | atrocious, barbarous, bestial, bitter, bloodthirsty, brutal, brutish, callous, cold-blooded, degenerate, demoniac, depraved, evil, excruciating, ferocious, fierce, flinty, hard, hard-hearted, harsh, hateful, heartless, hellish, implacable, inexorable, inhuman, inhumane, malevolent, merciless, monstrous, painful, pernicious, poignant, rancorous, relentless, revengeful, ruthless, sadistic, sinful, spiteful, tyrannical, unfeeling, unkind, unnatural, unrelenting, vengeful, vicious, virulent, wicked |
| Antonyms: | charitable, compassionate, considerate, feeling, gentle, kind, merciful, sympathetic, thoughtful, uncruel |
| Main Entry: | hardened |
| Part of Speech: | adjective |
| Definition: | unfeeling |
| Synonyms: | accustomed, benumbed, callous, case-hardened, coldhearted, contemptuous, cruel, disdainful, habituated, hard-as-nails, hard-bitten, hard-boiled, hardhearted, heartless, impenetrable, impious, inaccessible, indurated, inured, irreverent, obdurate, obtuse, prepared, resistant, seasoned, steeled, toughened, unashamed, unbending, uncaring, uncompassionate, unemotional, unrepenting, unsubmissive |
| Antonyms: | compassionate, feeling, kind, nice, sympathetic |
| Main Entry: | heartless |
| Part of Speech: | adjective |
| Definition: | without feeling; cold |
| Synonyms: | brutal, callous, cold fish, cold-blooded, cold-hearted, cruel, hard, hard as nails, hard-boiled, hard-hearted, harsh, inhuman, insensitive, merciless, obdurate, pitiless, ruthless, savage, thick-skinned, uncaring, uncompassionate, unemotional, unfeeling, unkind, unsympathetic |
| Antonyms: | caring, compassionate, considerate, feeling, kind, nice, sympathetic, warmhearted |
| Main Entry: | insensitive |
| Part of Speech: | adjective |
| Definition: | indifferent, callous |
| Synonyms: | aloof, bloodless, coldhearted, crass, feelingless, hard, hard as nails, hard-boiled, hardened, hardhearted, heartless, imperceptive, incurious, obtuse, stony, tactless, thick-skinned, tough, uncaring, unconcerned, unfeeling, unkind, unresponsive, unsusceptible |
| Antonyms: | caring, concerned, feeling, impressionable, mindful, responsive, sensitive |
| Main Entry: | merciless |
| Part of Speech: | adjective |
| Definition: | mean, heartless |
| Synonyms: | barbarous, callous, compassionless, cruel, cutthroat, dog-eat-dog, fierce, gratuitous, grim, hard, hardhearted, harsh, hatchet job, having a killer instinct, implacable, inexorable, inhumane, iron-fisted, mean machine, mortal, pitiless, relentless, ruthless, severe, unappeasable, uncalled-for, unfeeling, unflinching, unforgiving, unmerciful, unpitying, unrelenting, unsparing, unsympathetic, unyielding, wanton |
| Antonyms: | giving, kind, merciful, nice, sparing, sympathetic |