底まで

to the bottom

→ 底
phrase Rare #37,962
to the bottom Literally means “as far as the bottom,” and can also be used figuratively to mean “to the core” or “deep down.”
JA: 海の底まで見えるほど、水がきれいだ。
EN: The water is so clear that you can see all the way to the bottom of the sea.

底まではとても距離があるように思える

It seems like there's a very long way to the bottom.

彼は腹の底まで腐ったやつだ

He's rotten to the core.

このまま底まで行こう

Let's go all the way to the bottom like this…

— 天空の城ラピュタ (1986)

水が底まで澄んでいる

The water is crystal clear all the way to the bottom.