Synonyms and Antonyms of unmerciful
- she went into an unmerciful level of detail about her latest health problems
- the critics were unmerciful in their assessments of the young actress's performance
affectless, callous, case-hardened, cold-blooded, compassionless, desensitized, hard, 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, unsparing, unsympathetic
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