1) Asker 2) Enquirer 3) Inquirer 4) Offensively curious 5) Querier 6) Questioner 1) Inquiring 
• (a.) Pertaining to the Court of Inquisition or resembling its practices. • (a.) Pertaining to inquisition; making rigorous and unfriendly inquiry; searching; as, inquisitorial power.
In·quis`i·to'ri·al adjective [ Confer French inquisitorial .] 1. Pertaining to inquisition; making rigorous and unfriendly inquiry; searching; as, inquisitorial power. 'Illiberal and inquisitorial abuse.' F. Blackburne. « He conferred on it a kind of in...
[adj] - especially indicating a form of prosecution in which proceedings are secret and the accused is questioned by a prosecutor who acts also as the judge 2. [adj] - marked by inquisitive interest 3. [adj] - having the authority to conduct official investigations
inquisitorial 1. Resembling a formal inquiry, especially in using rigorous or relentless questioning. 2. Used to describe a trial in which one person is both judge and prosecutor.
adjective having the authority to conduct official investigations; `the inquisitorial power of the Senate`
of or pertaining to an inquisitor or inquisition. · exercising the office of an inquisitor. · · pertaining to a trial with one person or group inquiring into the facts and acting as both prosecutor and judge. · pertaining to secret criminal prosecutions.