忠贞不渝 zhōngzhēnbùyú unswervingly loyal Origin Definitions Defs Strokes Stroke Words Sentences Sents 忠贞 忠貞 zhōngzhēn loyal and steadfast loyal, dependable, and unwavering, especially toward one's country, cause, or partner不渝 bùyú constant unchanging; constant; remaining faithful or abiding