adj.混雜的;平凡的;不出色的
Sometimes formal English and informal English are undistinguished . 有時候正式英語與非正式英語很難分清。
He retired from the army with undistinguished record of service. 他帶著平凡的服役記錄離開了軍隊。
In Harvard he was undistinguished but read widely. 在哈佛大學(xué)讀書期間他并無過人之處,但博覽群書。