一本正经 Traditional 一本正經 yī běn zhèng jīng 🔊 in deadly earnest; deadpan + Keep this word Meanings yī běn zhèng jīng 一本正經 (idiom) in deadly earnest; deadpan Its characters 一yīoneHSK 1本běn(measure word for books)HSK 1正zhèngstraightHSK 2经jīngclassicsHSK 7–9