最さい深しん

na-adjective, noun which may take the genitive case particle 'no', noun

deepest

Used as a noun or adjectival noun to describe the greatest depth, often in geographical, emotional, or abstract contexts.

• この湖みずうみの最さい深しん部ぶは約やく100メートルです。

  The deepest part of this lake is about 100 meters.

• 彼かれの言こと葉ばは私わたしの心こころの最さい深しんに響ひびいた。

  His words resonated in the deepest part of my heart.