Synonyms of unnatural in English:

unnatural


See definition of unnatural

adjective

1‘the life of a battery hen is completely unnatural’

SYNONYMS
abnormal, unusual, uncommon, extraordinary, strange, freakish, freak, queer, odd, peculiar, weird, unorthodox, exceptional, irregular, atypical, untypical, non-typical, anomalous, divergent, aberrant, bizarre, preternatural
ANTONYMS

natural, normal

2‘the tractor passed in a flash of unnatural colour’

SYNONYMS
artificial, man-made, synthetic, manufactured, fabricated, fake, false, faux, simulated, not existing in nature, not found in nature
ANTONYMS

natural, genuine

3‘he was beheaded for unnatural vice’

SYNONYMS
perverted, warped, twisted, deviant, depraved, degenerate, bestial, unhealthy, immoral, abnormal, decadent
informal kinky, pervy, sick, sicko
rare deviative

4‘her voice sounded unnatural’

SYNONYMS
affected, artificial, stilted, self-conscious, contrived, forced, laboured, studied, strained, stiff, wooden
assumed, feigned, false, bogus, fake, insincere, pretended, unspontaneous, theatrical, stagy, mannered, pretentious
informal put on, phoney

5‘they condemned her as an unnatural woman’

SYNONYMS
uncaring, unconcerned, unfeeling, inhuman, soulless, heartless, cold, cold-blooded, hard, hard-hearted, callous, cruel, brutal, merciless, pitiless, remorseless, inhumane, evil, wicked, monstrous
ANTONYMS

caring