• (a.) Relating to inquiry or inquisition; inquisitorial; also, of or pertaining to, or characteristic of, the Inquisition.
In`qui·si'tion·al adjective [ Late Latin inquisitionalis .] Relating to inquiry or inquisition; inquisitorial; also, of or pertaining to, or characteristic of, the Inquisition. « All the inquisitional rigor . . . executed upon books.» Milton.