沈ちん思し黙もっ考こう

expression

deep in thought; lost in contemplation

A yojijukugo describing a state of silent, profound thinking. Often used in literary or formal contexts.

• 彼かれは沈ちん思し黙もっ考こうの末すえ、ついに答こたえを見みつけた。

  After deep contemplation, he finally found the answer.