Synonyms of illegal

Adjective

1. illegal (vs. legal), amerciable, banned, prohibited, bootleg, black, black-market, contraband, smuggled, criminal, felonious, dirty, ill-gotten, embezzled, misappropriated, extrajudicial, extralegal, nonlegal, hot, illegitimate, illicit, outlaw(prenominal), outlawed, unlawful, ineligible, misbranded, mislabeled, penal, punishable, under-the-counter, unratified, illegitimate, irregular, unlawful

usage: prohibited by law or by official or accepted rules; "an illegal chess move"

Definition and meaning of illegal (Dictionary)