English Reference
adjective · noun · adverb

instant

adj. · n. · adv.
US /ˈɪnstənt/ UK /ˈɪnstənt/ in·stant UK spelling instants

  1. 01 B1 Intermediate

    adj.happening or done immediately, without any delay.

    adj.occurring or performed at once; characterized by a lack of any intervening time.

    Simple

    The new song was an instant success and played on every radio station.

    In context

    The CEO's resignation met with an instant reaction from the stock market, causing prices to fluctuate wildly within minutes of the announcement.

  2. 02 A2 Elementary Cooking

    adj.describing food or drink that you can make very quickly, usually by adding hot water.

    adj.denoting a food or beverage product designed for rapid preparation, typically through the addition of a liquid.

    Simple

    He didn't have time for a real meal, so he just made some instant noodles.

    In context

    While instant coffee is convenient for office environments, many enthusiasts argue that it lacks the complex flavor profile of freshly ground beans.

    pre cookedready made
  3. 03 C2 Proficiency FormalArchaic Law

    adj.a formal way to talk about the current month.

    adj.pertaining to the current month; used primarily in formal or legal correspondence to refer to the month of the date on the letter.

    Simple

    Thank you for your letter of the 10th instant regarding our contract.

    In context

    The defendant's counsel submitted a revised motion on the 14th instant, superseding the previous documentation provided to the court.

    Usage

    Usually follows the day of the month (e.g., 'the 5th instant').

    ultimoproximo
  4. 04 B1 Intermediate

    n.a very short period of time.

    n.an infinitesimal or very brief period of time; a precise point in time.

    Simple

    For an instant, she forgot where she was when she woke up.

    In context

    The lightning flash illuminated the valley for a brief instant before the landscape was plunged back into total darkness.

  5. 05 C2 Proficiency Literary

    adv.right away or at once.

    adv.at once; immediately. Used primarily in poetic or highly literary contexts.

    Simple

    The shadows vanished instant the sun rose over the hill.

    In context

    The messenger departed instant the king had finished speaking, desperate to reach the border before nightfall.

Tools like ChatGPT, Claude and Perplexity are free, instant and easy to use.

Phys.org· 17 Aug 2026

The new audio offering will be made available as part of near-live instant replays, however, while the number of TV games featuring RefCam will increase from 20 to about 45.

The Guardian· 17 Aug 2026

Etymology 1

From Middle English instant (“infinitely short period of time”), from Old French instant (“assiduous, at hand”, adjective), from Latin īnstāns, īnstantis (“present, pressing, urgent”, literally “standing near”), present active participle of īnstō (“to stand upon, be nearby”), from in- (“after”) + stō (“to stand”). Compare Old English instede (“immediately, on the spot, at once”). More at in, stand.

Etymology 2

From French instant and Middle English instant, both from Old French, from Latin instans (“standing by, being near, present, also urgent, importunate”), present participle of instō (“to stand upon, press upon, urge, pursue, insist”), from in (“on, upon”) + stō (“to stand”); see state.

Etymology 3

Ultimately from Latin īnstāre; its precise evolution is uncertain. OED hints at (unattested) Middle French *instanter.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin instans
Level B2 · Upper Intermediate
Frequency Common
Updated