adj.
1.not conforming to legality, moral law, or social convention
2.contrary to or prohibited by or defiant of law
3.not morally right or permissible
4.having no legally established claim
5.contrary to or forbidden by law
Idiom of the Day
leave one's mark on (someone or something)
to affect the behavior and performance of another person or of something
The company president left his mark on the company for many years after he retired.