丝毫 sīháo HSK7 the slightest amount Origin Definitions Defs Strokes Stroke Words Sentences Sents 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毫 háo adverb at all (bound form) used as an intensifier in negative sentences to mean in the least or not even a tiny amount, as in 毫不 háobù or 毫无 háowú