馬ば鹿か正しょう直じき

na-adjective

honest to a fault; foolishly honest; naively honest

Describes someone whose excessive honesty leads to disadvantage or social awkwardness. Often used critically or affectionately.

• 彼かれは馬ば鹿か正しょう直じきだから、秘ひ密みつをすぐに話はなしてしまう。

  He's honest to a fault, so he ends up spilling secrets right away.

• 馬ば鹿か正しょう直じきに全ぜん部ぶ答こたえたら、面めん接せつに落おちた。

  I answered everything with foolish honesty and failed the interview.