improper, unconventional, unlawful -- (not conforming to legality, moral law, or social convention; "an unconventional marriage"; "improper banking practices")
unlawful -- (contrary to or prohibited by or defiant of law; "unlawful measures"; "unlawful money"; "unlawful hunters")
unlawful -- (not morally right or permissible; "unlawful love")
unlawful, wrongful -- (having no legally established claim; "the wrongful heir to the throne")
illegitimate, illicit, outlaw, outlawed, unlawful -- (contrary to or forbidden by law; "an illegitimate seizure of power"; "illicit trade"; "an outlaw strike"; "unlawful measures")
(Sound)
