妄ぼう挙きょMeanings1nounrash act; unreasonable action; indiscretionFormal or literary term for acting without due consideration; implies a lack of judgment or discrimination. Rare in everyday speech.彼かれの妄ぼう挙きょが会かい社しゃに大おおきな損そん害がいを与あたえた。His rash actions caused great damage to the company.妄ぼう挙きょを慎つつしむようにと上じょう司しに注ちゅう意いされた。My boss warned me to refrain from reckless behavior.