来历不明 Traditional 來歷不明 lái lì bù míng 🔊 of unknown origin; of dubious background + Keep this word Meanings lái lì bù míng 來歷不明 (idiom) of unknown origin; of dubious background Its characters 来láito comeHSK 1历lìto experience不bùnot; noHSK 1明míngbright