Against the law; forbidden by law.
Guilty of breaking the law.
Abhorrent or very undesirable.
Of or relating to crime or penal law.
A person who is guilty of a crime, notably breaking the law.
To sacrifice (a pawn or minor piece) to gain an advantage.
Any ploy or stratagem.
An opening in chess in which a minor piece or a pawn is sacrificed to gain an advantage.
A remark intended to open a conversation.