Open English Wordnet
Adjectives
(s)improper, unconventional, unlawfulnot conforming to legality, moral law, or social convention“an unconventional marriage”,
“improper banking practices” (a)unlawfulcontrary to or prohibited by or defiant of law“unlawful measures”,
“unlawful money”,
“unlawful hunters” (s)unlawfulnot morally right or permissible“unlawful love” (s)unlawful, wrongfulhaving no legally established claim“the wrongful heir to the throne”