Definition
一丝一毫 is a set four-character idiom meaning 'the slightest bit' or 'an iota'. It's used in negative contexts to emphasize that something is absolutely absent (no trace at all, not the least amount). 一丝 literally means 'one silk thread' and 一毫 means 'one fine hair' — together they emphasize an extremely tiny amount. You'll see it in the pattern 没有一丝一毫的 + noun or verb phrases with 也/都 for emphasis.
n.
(set phrase) not a single bitthe slightest amount (used in negative constructions)
Examples
- 一丝一毫。Tā duì zhè jiàn shì méiyǒu yī sī yī háo de xìngqù.He doesn't have the slightest bit of interest in this matter.
- 一丝一毫。Zhège jìhuà bùnéng yǒu yī sī yī háo de chācuò.There cannot be any trace of error in this plan.
- 一丝一毫。Tā de tàidu méiyǒu yī sī yī háo de gǎibiàn.Her attitude hasn't changed one bit.
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