Chinese edit

 
to not know; to have no idea of; to be ignorant of
to not know; to have no idea of; to be ignorant of; to wonder if
fen and cun, two ancient Chinese units of length
trad. (不知分寸) 不知 分寸
simp. #(不知分寸) 不知 分寸

Pronunciation edit


Idiom edit

不知分寸

  1. to lack tact; to have no sense of propriety