adjective
1.
Synonyms: irregular 1, abnormal, anomalous, deviant, divergent, off-key, unregular
2.
Synonyms: supernatural 2, superhuman, supernormal, superordinary, supranormal, uncanny
Antonyms: natural
UNNATURAL
Meaning of UNNATURAL in English
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003