铁面无私 Traditional 鐵面無私 tiě miàn wú sī 🔊 strictly impartial and incorruptible (idiom) + Keep this word Meanings tiě miàn wú sī 鐵面無私 strictly impartial and incorruptible (idiom) Its characters 铁tiěiron (metal)HSK 7–9面miànfaceHSK 2无wúnot to haveHSK 4私sīpersonal; private