also: すんぷん
tiny bit; the slightest amount
Used in negative sentences to mean 'not even a tiny bit'. Often paired with 違わない, 狂わない, or 変わらない.
この時計は寸分の狂いもなく動いている。
This clock runs without the slightest deviation.
彼の説明は寸分違わず正しかった。
His explanation was exactly right, without a single error.
Standard kanji spelling.
Alternate reading; less common than すんぶん.
Compound of 寸 (すん, a traditional unit of length, about 3.03 cm) and 分 (ぶん, one-tenth of a 寸), together meaning a very small amount.