孝思不匮 Traditional 孝思不匱 xiào sī bù kuì 🔊 to be forever filial (idiom) + Keep this word Meanings xiào sī bù kuì 孝思不匱 to be forever filial (idiom) Its characters 孝xiàofilial piety or obedience思sīto think不bùnot; noHSK 1匮kuìto lack