沈ちん思し黙もっ考こうちんしもっこうMeanings1expressiondeep in thought; lost in contemplationyojijukugo (four-character idiom)›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