in vain

Adjective

idiomatic

(idiomatic) Unsuccessful, failed.

Japanese Meaning

無駄に、徒労に終わる（効果がなく、失敗に終わる状態を示す）

Her in vain attempts to repair the old radio taught her patience.

古いラジオを修理しようとした彼女の失敗した試みは、彼女に忍耐を教えた。

Sense（1）

(idiomatic) Unsuccessful, failed.

Their efforts were in vain and he succumbed to his injuries.