忠贞不渝 Traditional 忠貞不渝 zhōng zhēn bù yú 🔊 unswerving in one's loyalty (idiom) + Review this word Meanings zhōng zhēn bù yú 忠貞不渝 unswerving in one's loyalty (idiom); faithful and constant Its characters 忠zhōngloyal; devoted; faithful贞zhēnchaste不bùnot; noHSK 1渝yúto change; to waver (usu. in 不渝[bu4 yu2])