probing adjective 1noun 1forms 3 adjective1 •That investigates or explores deeply; that attempts to elicit information that is concealed.He was unsettled by her probing questions. noun1 •The action of investigating or exploring.Rooney was the subject of some mischievous probing from the Russia media before the game as they suggested his retreat into midfield was a measure of his declining powers. — 2016 formsprobings · more probing · most probing