1. Precluding debate or expostulation; not admitting of question or appeal; positive; absolute; decisive; conclusive; final. Think of heaven with hearty purposes and peremptory designs to get thither. (Jer. Taylor)
3. Firmly determined; unawed. Peremptory challenge See Challenge. Peremptory mandamus, a final and absolute mandamus. Peremptory plea, a plea by a defendant tending to impeach the plaintiff's right of action; a plea in bar.
Origin: L. Peremptorius destructive, deadly, decisive, final: cf. F. Peremptorie. See Perempt.