一切經音義 50.206

50.206

頑嚚（五還反下魚巾反廣雅頑嚚愚也頑鈍也蒼頡篇嚚惡也左傳心不測德義之經曰頑口不道忠信之言曰嚚是也）。

頑嚚 (stubborn and perverse: [頑 has the fanqie] 五還; the second character [嚚 has the fanqie] 魚巾. The Guangya says: "Wan-yin (頑嚚) means foolish; wan means obtuse." The Cangjiepian says: "Yin means evil." The Zuozhuan says: "A heart that cannot fathom virtue and righteousness is called wan; a mouth that speaks no words of loyalty and faith is called yin;" this is it).