| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | merciless |
| Synonyms: | cruel, heartless, pitiless, relentless, remorseless, revengeful, ruthless, uncompassionate, unkind, unrelenting, unsympathetic |
| Antonyms: | compassionate, forgiving, kind, merciful, remorseful, sympathetic, tolerant |
| Main Entry: | implacable |
| Part of Speech: | adjective |
| Definition: | merciless, cruel |
| Synonyms: | grim, inexorable, inflexible, intractable, ironfisted, mortal, pitiless, rancorous, relentless, remorseless, ruthless, unappeasable, unbending, uncompromising, unflinching, unforgiving, unrelenting, unyielding, vindictive |
| Notes: | placable is 'of a tolerant nature' - the opposite of implacable |
| Antonyms: | kind, merciful, nice, placable |
| 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 |
| Main Entry: | relentless |
| Part of Speech: | adjective |
| Definition: | cruel, merciless |
| Synonyms: | adamant, bound, bound and determined, dead set on, determined, dogged, ferocious, fierce, go for broke, grim, hang in, hang-tough, hard, harsh, implacable, inexorable, inflexible, inhuman, mortal, obdurate, pitiless, remorseless, rigid, rigorous, ruthless, single-minded, stiff, stop at nothing, strict, stringent, unappeasable, unbending, uncompromising, undeviating, unflinching, unforgiving, unrelenting, unstoppable, unyielding, vindictive |
| Antonyms: | kind, merciful, sympathetic, understanding |
| Main Entry: | remorseless |
| Part of Speech: | adjective |
| Definition: | without guilt in spite of wrongdoing |
| Synonyms: | avaricious, barbarous, bloody, callous, cruel, fierce, forbidding, greedy, grim, hard, hard-bitten, hard-hearted, hardened, harsh, impenitent, implacable, inexorable, inhuman, inhumane, insensitive, intolerant, merciless, murderous, obdurate, pitiless, relentless, rigorous, ruthless, sanguinary, savage, shameless, sour, tough, tyrannical, uncompassionate, uncontrite, unforgiving, unmerciful, unregenerate, unrelenting, unremitting, unrepenting, unyielding, vindictive |
| Antonyms: | ashamed, guilty, remorseful, sad, sorry |
| Main Entry: | ruthless |
| Part of Speech: | adjective |
| Definition: | mean, heartless |
| Synonyms: | adamant, barbarous, brutal, callous, cold, cold-blooded, cruel, cutthroat, dog-eat-dog, feral, ferocious, fierce, grim, hard, hard-hearted, harsh, implacable, inexorable, inhuman, ironfisted, killer, malevolent, merciless, mortal, obdurate, pitiless, rancorous, relentless, remorseless, revengeful, sadistic, savage, severe, stern, stony, surly, unappeasable, unfeeling, unforgiving, unmerciful, unrelenting, unsympathetic, unyielding, vicious, vindictive, without pity |
| Antonyms: | compassionate, considerate, gentle, giving, kind, nice, sympathetic |
| Main Entry: | stony |
| Part of Speech: | adjective |
| Definition: | hard, icy in appearance, response |
| Synonyms: | adamant, blank, callous, chilly, cold, cold-blooded, coldhearted, cruel, expressionless, firm, frigid, hard-boiled, hardened, heartless, hostile, indifferent, inexorable, inflexible, merciless, obdurate, pitiless, rough, tough, uncompassionate, unfeeling, unforgiving, unrelenting, unresponsive, unsympathetic |
| Antonyms: | friendly, smiling, soft, warm |
| Main Entry: | tough |
| Part of Speech: | adjective |
| Definition: | obstinate, rough |
| Synonyms: | adamant, arbitrary, callous, confirmed, cruel, desperate, drastic, exacting, ferocious, fierce, firm, fixed, hard, hard-bitten, hard-boiled, hard-line, hard-nosed, hard-shelled, harsh, headstrong, immutable, inflexible, intractable, merciless, narrow, obdurate, pugnacious, refractory, resolute, ruffianly, ruthless, savage, severe, stern, stiff, strict, stubborn, taut, terrible, unalterable, unbending, uncompromising, uncontrollable, unforgiving, unmanageable, unyielding, vicious, violent |
| Antonyms: | gentle, kind, nice, tender |
| Main Entry: | vengeful |
| Part of Speech: | adjective |
| Definition: | retaliating; hating |
| Synonyms: | antagonistic, avenging, hostile, implacable, inimical, punitive, rancorous, relentless, retaliatory, revengeful, spiteful, unforgiving, vindictive |
| Antonyms: | condoning, forgiving, liking, pardoning |