Synonyms of unmerciful
- 1 Syllable
- hard
- 2 Syllables
- ruthless, brutal, monstrous, bestial, heartless, hurtful
- 3 Syllables
- ferocious, pitiless, dog-eat-dog, coldhearted, tyrannous, tigerish, unsparing, uncaring, unpitying, merciless, procrustean, relentless, vengeful, bloodthirsty, unfeeling
- 4 Syllables
- remorseless, implacable, unrelenting, iron-fisted, vindictive, unrepenting, inhumane, ironfisted
- 5 Syllables
- unsympathizing, uncharitable
- 6 Syllables
- unapologetic