過か不ふ及きゅう

noun

excess or deficiency

Rare, formal term for the concept of going too far or not far enough; mostly found in classical or philosophical contexts. In modern Japanese, 過不足 (かふそく) is the usual word.

• 古こ典てんでは「過か不ふ及きゅう」を中ちゅう庸ようの対たい極きょくとして論ろんじることがある。

  In classical texts, 過不及 is sometimes discussed as the opposite of the golden mean.