愚おろかにも

adverb

foolishly; stupidly

Used to describe an action done in a foolish or unwise manner, often with a sense of regret or criticism. Commonly appears with verbs like 言う, 思う, 信じる, する.

• 愚おろかにも彼かれの嘘うそを信しんじてしまった。

  I foolishly believed his lie.

• 愚おろかにもそんなことを言いってしまった。

  I stupidly said such a thing.