The meaning of illegal is not according to or authorized by law (definition of illegal from the cambridge learner's dictionary © cambridge university press) Contrary to or in violation of a law
Not sanctioned by official rules (as of a game). Legal, lawful, legitimate, right, ethical, good, permitted, righteous Forbidden by law or statute.
Not allowed by the rules of a sport An offensive word for someone… An illegal pass in football Unacceptable to or not performable by a computer
According to black's law dictionary (2nd edition), illegal may mean only that something lacks authority of the law or support from law (that is, that it's not legal), not that it's against the law, but that in ordinary usage it means a violation of the law. Definition of illegal adjective in oxford advanced learner's dictionary Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Master the word illegal in english
Unlawful, illicit, criminal, felonious, wrongful, unauthorized, forbidden, illegitimate
