Not allowed by law: Not allowed by the rules of a sport: An offensive word for someone…. Learn more. Definition of illegal adjective in oxford advanced learner's dictionary.
Understanding the Context
Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. The meaning of illegal is not according to or authorized by law : Contrary to or in violation of a law : Not sanctioned by official rules (as of a game). Forbidden by law or statute. See examples of illegal used in a sentence.
Key Insights
If something is illegal, the law says that it is not allowed. It is illegal to intercept radio messages. Birth control was illegal there until 1978. He has been charged with membership of an illegal organisation.
