penetrating, piercing (of temperature, extremely cold so that it penetrates through clothing and shelter) · penetrating, pungent (odour) · penetrating, piercing (appearing to look deeply into: gaze, look, etc.)
köken: Learnedly from Ancient Greek διαπερασ- (stem of διαπερῶ (diaperô)) + -τικός (-tikós), a calque of French pénétrant.