Synonyms of pitiless

1 Syllable
mean, cruel, harsh, cold
2 Syllables
soulless, stony, ruthless, frigid, brutal, stonier, feller, cutthroat, hang-tough, callous, heartless
3 Syllables
ferocious, inhuman, dog-eat-dog, uncordial, coldhearted, hardhearted, austere, tigerish, severest, rocklike, merciless, coldblooded, hatchetjob, savage, barbarous, severer, ferine, relentless, satanic, cold-blooded, unfeeling
4 Syllables
ironhearted, unforgiving, remorseless, stony-hearted, implacable, unrelenting, obdurate, unamiable, insensible, iron-handed, indifferent, iron-fisted, unmerciful, stonyhearted, unrepenting, inhumane, ironfisted
5 Syllables
inexorable
6 Syllables
unapologetic