| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | hateful, revengeful |
| Synonyms: | avenging, cruel, grim, grudging, implacable, malicious, malignant, merciless, rancorous, relentless, resentful, retaliatory, ruthless, spiteful, unforgiving, unrelenting, vengeful, venomous, wreakful |
| Antonyms: | forgiving, helpful, kind, nice |
| 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: | malevolent |
| Part of Speech: | adjective |
| Definition: | hateful |
| Synonyms: | bad-natured, baleful, catty, despiteful, dirty, evil, evil-minded, hellish, hostile, lousy, malicious, malign, malignant, murder, murderous, pernicious, poison, rancorous, rough, sinister, spiteful, tough, vengeful, vicious, vindictive, waspish, wicked |
| Notes: | while malevolent suggests deep and lasting dislike, malicious usually means petty and spiteful |
| Antonyms: | amiable, harmless, kind, liking, loving |
| Main Entry: | punitive |
| Part of Speech: | adjective |
| Definition: | concerning punishment |
| Synonyms: | castigating, correctional, disciplinary, in reprisal, in retaliation, penal, punishing, punitory, retaliative, retaliatory, revengeful, vindictive |
| Notes: | penal means 'relating to punishment' while punitive means 'serving to punish' |
| Antonyms: | beneficial, rewarding |
| 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: | spiteful |
| Part of Speech: | adjective |
| Definition: | hurtful, nasty |
| Synonyms: | accidentally on purpose, angry, barbed, catty, cruel, cussed, despiteful, dirty, evil, hateful, ill-disposed, ill-natured, malevolent, malicious, malign, malignant, mean, ornery*, rancorous, snide, spleenful, splenetic, venomous, vicious, vindictive, waspish, wicked |
| Antonyms: | affectionate, forgiving, helpful, loving, pleasing |
| Main Entry: | unmerciful |
| Part of Speech: | adjective |
| Definition: | cruel |
| Synonyms: | bestial, bloodthirsty, brutal, coldhearted, hard, heartless, hurtful, implacable, inhumane, merciless, monstrous, pitiless, relentless, remorseless, ruthless, tyrannous, uncaring, unfeeling, unpitying, unrelenting, unsparing, vengeful, vindictive |
| Antonyms: | generous, kind, merciful, nice |