Main Entry: ¹il·le·gal

Pronunciation: \(ˌ)i(l)-ˈlē-gəl\

Function: adjective

Etymology: Middle French or Medieval Latin; Middle French illegal, from Medieval Latin illegalis, from Latin in- + legalis legal

Date: 1538

: not according to or authorized by law : unlawful, illicit; also : not sanctioned by official rules (as of a game)

— il·le·gal·i·ty \ˌi-li-ˈga-lə-tē\ noun

— il·le·gal·ly \(ˌ)i(l)-ˈlē-gə-lē\ adverb