pressing; urgent; importunate; earnest.-closely pressing or impending in respect to time; not deferred; immediate; without delay.-present; current.-instantly.-a point in duration; a moment; a portion of time too short to be estimated; also, any particular moment.-a day of the present or current month; as, the sixth instant; -- an elliptical expression equivalent to the sixth of the month instant, i. e., the current month. see instant, a., 3.