adjective il·le·gal \(ˌ)i(l)-ˈlē-gəl\

: not allowed by the law : not legal

: not allowed by the rules in a game

Full Definition of ILLEGAL

:  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

Origin of ILLEGAL

Middle French or Medieval Latin; Middle French illegal, from Medieval Latin illegalis, from Latin in- + legalis legal
First Known Use: 1538

Other Legal Terms

actionable, alienable, carceral, chattel, complicity, decedent, larceny, malfeasance, modus operandi


noun, sometimes disparaging + offensive

Definition of ILLEGAL

:  a person who enters or lives in a country without the documentation required for legal entry or residence

First Known Use of ILLEGAL

ILLEGAL Defined for Kids


adjective il·le·gal \i-ˈlē-gəl\

Definition of ILLEGAL for Kids

:  not allowed by the laws or rules <He was arrested for illegal activities.> <The team made an illegal play.>
il·le·gal·ly \i-ˈlē-gə-lē\ adverb


Next Word in the Dictionary: illegalizePrevious Word in the Dictionary: IllecebraceaeAll Words Near: illegal
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears