unmerciful

1 going beyond a normal or acceptable limit in degree or amount she went into an unmerciful level of detail about her latest health problems Synonyms baroque, devilish, exorbitant, extravagant, extreme, fancy, immoderate, inordinate, insane, intolerable, lavish, overdue, overextravagant, overmuch, overweening, plethoric, steep, stiff, towering, unconscionable, undue, excessiveRelated Words boundless, endless, immeasurable, infinite, limitless; unbearable, unjustifiable, unwarranted; improper, inappropriate, thick, unseemly; unrestrainedNear Antonyms deficient, inadequate, insufficient; minimal, minimumAntonyms middling, moderate, modest, reasonable, temperate

2 having or showing a lack of sympathy or tender feelings the critics were unmerciful in their assessments of the young actress's performance Synonyms affectless, callous, case-hardened, cold-blooded, compassionless, desensitized, hard-boiled, hard-hearted, heartless, indurate, inhuman, inhumane, insensate, insensitive, ironhearted, merciless, obdurate, pachydermatous, pitiless, remorseless, ruthless, slash-and-burn, soulless, stony (also stoney), stonyhearted, take-no-prisoners, thick-skinned, uncharitable, unfeeling, hard, unsparing, unsympatheticRelated Words boorish, heedless, inconsiderate, thoughtless, uncaring, unfriendly, unloving, unthinking; grim, hard-bitten, harsh, heavy-handed, ironfisted, ironhanded, jackbooted, knock-down, drag-out (or knock-down-and-drag-out), oppressive, rough, rough-and-tumble, severe, sledgehammer, stern, tough, ungentle; abusive, acrimonious, disagreeable, hateful, ill-natured, ill-tempered, malevolent, malicious, mean, rancorous, spiteful, surly, virulent; barbarous, bestial, brutal, brutish, cruel, evil-minded, savage, vicious; austere, cold, frostyNear Antonyms benevolent, benignant, gentle, kind; clement, indulgent, lenient, mild; cordial, friendly, good-natured, good-tempered, gracious; tolerant, understanding; affectionate, fond, lovingAntonyms charitable, compassionate, humane, kindhearted, kindly, merciful, sensitive, softhearted, sympathetic, tender, tenderhearted, warm, warmhearted