纹丝 wénsī a tiny bit Origin Definitions Defs Strokes Stroke Words Sentences Sents 纹 紋 wén noun pattern lines or patterns on the surface of an object, such as wood grain or ripples丝 絲 sī numeraladjective trace a tiny bit; a very small amount, often used in set phrases like 一丝不苟 yīsībùgǒu or 丝毫 sīháo