come hell or high water

Adverb

idiomatic

(idiomatic) Regardless of the hardships.

Japanese Meaning

どんな大変な状況でも、何があっても / たとえ困難があっても

I'll finish this project come hell or high water.

私はどんな困難があってもこのプロジェクトを必ずやり遂げます。

Sense（1）

(idiomatic) Regardless of the hardships.

The pioneers were determined to build a community in the wilderness come hell or high water.

come hell

（ canonical ）

high water

（ canonical ）