底そこ知しれず

expression

bottomless; unfathomable; immeasurable

Describes something so deep or vast that its limits cannot be perceived, often used figuratively for potential, power, or depth of feeling. Related to the literary form 底知れぬ.

See also: 底知れぬ

• 彼かれの才さい能のうは底そこ知しれず、どこまで伸のびるかわからない。

  His talent is bottomless; there's no telling how far he'll go.

• その湖みずうみは底そこ知しれずの深ふかさだと言いわれている。

  The lake is said to be of unfathomable depth.