Of or pertaining to an inquisition, specifically the Inquisition. / In a manner of inquisition or inquisitors. / (law) Describing a trial system in which the prosecutor also acts as judge.

In an inquisitorial manner.

A system of criminal procedure resembling the Roman Inquisition.

The quality of being inquisitorial.

In the manner of an inquisition or inquiry.

(obsolete) Making strict inquiry; inquisitorial.

(law) a trial system in which the prosecutor also acts as judge