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Synonyms

instant

American  
[in-stuhnt] / ˈɪn stənt /

noun

  • instants
    plural
  1. an infinitesimal or very short space of time; a moment.

    They arrived not an instant too soon.

    Synonyms:
    trice, jiffy, flash, twinkling, second
  2. the point of time now present or present with reference to some action or event.

  3. a particular moment.

    at the instant of contact.

  4. a food or beverage, especially coffee, specially processed for quick preparation.

  5. Older Use. the present or current month.


adjective

  1. succeeding without any interval of time; prompt; immediate.

    instant relief from a headache.

  2. pressing or urgent.

    instant need.

  3. noting a food or beverage requiring a minimal amount of time and effort to prepare, as by heating or the addition of milk or water, before being served or used.

    instant coffee; instant pudding.

  4. occurring, done, or prepared with a minimal amount of time and effort; produced rapidly and with little preparation.

    an instant book; instant answers; instant history.

  5. designed to act or produce results quickly or immediately.

    an instant lottery.

  6. Older Use. of the present month: inst.

    your letter of the 12th instant.

  7. present; current.

    the instant case before the court.

adverb

  1. instantly.

instant British  
/ ˈɪnstənt /

noun

  1. a very brief time; moment

  2. a particular moment or point in time

    at the same instant

  3. immediately; without delay

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. immediate; instantaneous

  2. (esp of foods) prepared or designed for preparation with very little time and effort

    instant coffee

  3. urgent or imperative

  4. (postpositive)

    1.  inst.  of the present month Compare proximo ultimo

      a letter of the 7th instant

    2. currently under consideration

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. a poetic word for instantly

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

See minute 1.

Other Word Forms

Noun Inflected Forms

Etymology

Origin of instant

First recorded in 1350–1400; from Latin instant- (stem of instāns ), present participle of instāre “to be present, urgent,” equivalent to in- in- 2 + -stā- stand + -nt- present participle suffix

Explanation

An instant is a very short time. In combinations like instant coffee and instant replay it means available right away without a wait. Instant and moment mean the same thing if you are talking about a particular time in the past like you remember the instant or moment you realized that you had won the lottery. However, the two words are very different when talking about time in the future. "I'll be there in an instant" means you're coming as quickly as possible, whereas if you say "I'll be there in a moment," someone is going to have to wait a bit for you.

Keep Reading on Vocabulary.com

Vocabulary lists containing instant

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The BBC's Tokyo correspondent Kurumi Mori tries Japan's latest food trend, instant noodles made with cold water.

From BBC Sep. 1, 2026

When Pogacar hit the asphalt, the damage was instant: a concussion, bruises and cuts to his face and shoulder, a fractured C7 vertebrae and a broken collarbone said to require surgery.

From The Wall Street Journal Aug. 30, 2026

The egregious business decision drew instant ire from all sides.

From Salon Aug. 30, 2026

Someone who places lots of bets using prediction-market apps craves instant gratification.

From MarketWatch Aug. 18, 2026

Once tucked into her own narrow cot, Penelope fell asleep in an instant and dreamed she was back at Swanburne.

From "The Long-Lost Home" by Maryrose Wood

When analyzing spacetime, do events, instants, worldlines or even spacetime as a whole exist in the same sense as places and people?

From Science Daily Nov. 2, 2025

In ECSE, scientists will take x-ray pictures of scale-model pits as they collapse and investigate how neutrons behave during those crucial instants before the nuclear detonation.

From Science Magazine Apr. 20, 2023

There’s just no comparison, and in a way it isn’t fair to test the flavor of Cometeer against powdered instants — but we did because when it comes to add-water-and-stir coffee, it’s an option.

From Los Angeles Times Feb. 23, 2023

In nature, tetraquarks probably existed only during the first instants of the Universe, when all matter was compressed in an extremely tight space, says Belyaev.

From Scientific American Aug. 11, 2021

Matthos lent him a hand to help him hack over the raiL For those few instants, Black Betba and White Hart were the calm eye in the midst of the storm.

From "A Clash of Kings" by George R.R. Martin

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