lost in translation

idiomatic not-comparable

(idiomatic) Unable to be understood due to having been poorly translated.

Japanese Meaning

翻訳の過程で本来の意味や意図が十分に伝わらなくなる状態 / 誤訳によって、元々の意味が失われたり、誤解されたりする現象

She felt lost in translation during the multinational meeting, and her intended meaning never came across.

多国籍の会議で、彼女は翻訳のせいで意味が伝わらないと感じ、意図した意味はまったく伝わらなかった。

Sense（1）

(idiomatic) Unable to be understood due to having been poorly translated.

I tried reading the instruction manual but many of the steps were unfortunately lost in translation.