あいた口が塞がらぬ あいたくちがふさがらぬ Also written 開いた口が塞がらぬ Meanings Expression, Prenominal surprising; shocking; jaw-dropping See also: あいた口も塞がらぬ (あいたくちもふさがらぬ). Kanji 口 mouth. Read as くち. 塞 block. Read as ふさぐ. Jinuma: Japanese Dictionary · Word lists