fatuousKK [ˋfætʃəwəs] /ˈfætʃəwəs/發音形容詞1愚蠢的、蠢話似的、無知的正式He made a fatuous remark about women drivers at dinner.他在晚餐時對女性駕駛人發表了一番愚蠢的評論。2自以為是的、空洞的貶義She wore a fatuous smile throughout the entire meeting.整場會議她都掛著一抹自以為是的笑容。