Synonyms of inhuman in English:

inhuman


See US English definition of inhuman

See UK English definition of inhuman

See Spanish definition of inhumano

adjective

1‘the inhuman treatment meted out to political prisoners’

SYNONYMS
cruel, harsh, inhumane, brutal, callous, sadistic, severe, savage, vicious, barbaric, barbarous
bestial, monstrous, fiendish, diabolical, evil, wicked, heinous
merciless, ruthless, pitiless, unpitying, remorseless, cold-blooded, heartless, hard-hearted, stone-hearted, with a heart of stone, unforgiving
unkind, unkindly, inconsiderate, unsympathetic, unfeeling, uncaring
informal hard-boiled, hard-nosed
British informal, dated beastly
archaic dastardly, sanguinary
rare egregious, flagitious
ANTONYMS

humane, compassionate

2‘the macabre, inhuman vampires of old films’

SYNONYMS
non-human, non-mortal, monstrous, devilish, demonic, demoniac, ghostly
subhuman, animal
strange, odd, bizarre, unearthly
ANTONYMS

human