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