Reprobate

That which is rejected on account of its own worthlessness (Jer 6:30; Heb 6:8; Gr. adokimos, “rejected”). This word is also used with reference to persons cast away or rejected because they have failed to make use of opportunities offered them (1 Cor 9:27; 2 Cor 13:5–7).

From Easton’s Bible Dictionary (1897), by Matthew George Easton.