Transgressional

a. Of pertaining to transgression; involving a transgression. [ 1913 Webster ]

n. [ L. transgressio a going across, going over, transgression of the law, from transgredi, transgressus, to step across, go over; trans over, across + gradi to step, walk: cf. F. transgression. See Grade. ] The act of transgressing, or of passing over or beyond any law, civil or moral; the violation of a law or known principle of rectitude; breach of command; fault; offense; crime; sin. [ 1913 Webster ]

Forgive thy people . . . all their transgressions wherein they have transgressed against thee. I Kings viii. 50. [ 1913 Webster ]

What rests, but that the mortal sentence pass
On his transgression, death denounced that day ? Milton. [ 1913 Webster ]

The transgression is in the stealer. Shak. [ 1913 Webster ]

Syn. -- Fault; offense; crime; infringement; misdemeanor; misdeed; affront; sin. [ 1913 Webster ]