Synonyms: illegitimate, illicit, outlaw, outlawed, unlawful
Definition: contrary to or forbidden by law
Usage: an illegitimate seizure of power; illicit trade; an outlaw strike; unlawful measures
Similar words: illegal
Definition: prohibited by law or by official or accepted rules
Usage: an illegal chess move
Synonyms: illicit
Definition: contrary to accepted morality (especially sexual morality) or convention
Usage: an illicit association with his secretary
Similar words: adulterous, extracurricular, extramarital
Definition: characterized by adultery
Usage: an adulterous relationship; extramarital affairs; the extracurricular activities of a philandering husband
Similar words: unlawful
Definition: not morally right or permissible
Usage: unlawful love