not deviating a hair 's breadth
Chinese idiom, Pinyin is m á of āù B ù Shu ǎ ng, which means you are still not happy. It's not bad at all. From Guangyang Zaji.
Analysis of Idioms
Antonym: totally different
The origin of Idioms
The second volume of Guangyang Zaji written by Liu Xianting in Qing Dynasty: "it's hard to make do with it when it comes to four to eight."
Idiom usage
It's not bad at all.
not deviating a hair 's breadth
To pull a sword to destroy Tibet - lā bǎi cuī cáng
one 's delight appears on the end of the eyebrow - xǐ yì méi shāo
be equal in match or contest of strength - qí gǔ xiāng dāng