深しん山ざん幽ゆう谷こくしんざんゆうこくMeanings1noundeep mountain valleysyojijukugo (four-character idiom)›A yojijukugo (four-character compound) used in literary or descriptive contexts to evoke remote, secluded mountain scenery.深しん山ざん幽ゆう谷こくを分わけ入いっ