unmentionably

In an unmentionable way; indescribably, unutterably, unspeakably.

Japanese Meaning

言葉に表せないほど / 表現しがたいほど / 口に出しがたいほど

She blushed unmentionably when asked about the secret.

秘密について尋ねられたとき、彼女は口に出せないほど赤面した。

Sense（1）

In an unmentionable way; indescribably, unutterably, unspeakably.

They sat down and had one of their old chummy talks until an unmentionably late hour.

more unmentionably

（ comparative ）

most unmentionably

（ superlative ）