illegal

adjective

Contrary to or forbidden by law, especially criminal law.

noun

A person living in a country without official authorization.

SYNONYMS

actionablebannedbarredbentbootlegcheatingcontrabandcriminalcrookeddishonestdishonourabledodgyfeloniousforbiddenfoulillegitimateillicitinterdictedlawbreakingmalfeasantoutlawedprohibitedproscribedshadyunauthorizedunderhandunfairunlawfulunlicensedunofficialunsanctionedunsportingunsportsmanlikeunwarrantedverboten