illegal
https://gyazo.com/e06092eccc02f00b3cf1539bb6bdfc01
adjective
contrary to or forbidden by law, especially criminal law:
違法の, 不法の, 非合法の(↔ legal)
e.g. illegal drugs.
noun derogatory, mainly North American
a person present in a country without official authorization.
｟米話｠ 不法入国者
ORIGIN
early 17th century: from French illégal or medieval Latin illegalis, from Latin in- ‘not’ + legalis ‘according to the law’.