instant /ˈɪnstənt/adjective 8noun 4adverb 1verb 1forms 3phrases 1 adjective8 •happening at once, with no waitI see no day to To day, the instant Time is alvvayes the fittest time. — 1645 •Very quickly and easily prepared. •Lasting for a short moment; momentary; short-lived. •Present; current; extant. •(old-fashioned) Of the current month.I refer to your letter of the 16th instant in regard to traffic disruption. •(old-fashioned) Urgent; pressing; acute. •(old-fashioned) Insistent; persistent.January 2, 1827, Thomas Carlyle, letter to Mrs. Carlyle, Scotsbrig I am beginning to be very instant for some sort of occupation. •(old-fashioned) Impending; imminent.Impending death is thine, and instant doom. — 1703 noun4 •A very short period of time; a moment.She paused for only an instant, which was just enough time for John to change the subject. •A single, usually precise, point in time.The instant the alarm went off, he fled the building.Liftoff occurs the instant the bolts are released. •A beverage or food which has been pre-processed to reduce preparation time, especially instant coffee. •instant camera adverb1 •(literary) At once; immediately.He left the room for his relinquished sword, / And Julia instant to the closet flew. — 1819 verb1 •(no longer used) To urge, press (someone); to insist on, demand (something). formsinstanted · instanting · instants Phrases with instant upon the instantImmediately, right away.