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improvise

American  
[im-pruh-vahyz] / ˈɪm prəˌvaɪz /

verb (used with object)

  • improvises,
    present (3rd person singular)
  • improvised,
    past participle,  past
  • improvising
    present participle
  1. to compose and perform or deliver without previous preparation; extemporize.

    to improvise an acceptance speech.

  2. to compose, play, recite, or sing (verse, music, etc.) on the spur of the moment.

  3. to make, provide, or arrange from whatever materials are readily available.

    We improvised a dinner from yesterday's leftovers.


verb (used without object)

  • improvises,
    present (3rd person singular)
  • improvised,
    past participle,  past
  • improvising
    present participle
  1. to compose, utter, execute, or arrange anything extemporaneously.

    When the actor forgot his lines he had to improvise.

improvise British  
/ ˈɪmprəˌvaɪz /

verb

  1. to perform or make quickly from materials and sources available, without previous planning

  2. to perform (a poem, play, piece of music, etc), composing as one goes along

"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

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Etymology

Origin of improvise

First recorded in 1820–30; from French improviser, or its source, Italian improvisare (later improvvisare ), verbal derivative of improviso “improvised,” from Latin imprōvīsus, equivalent to im- “un-” + prōvīsus, past participle of prōvidēre “to see beforehand, prepare, provide for (a future circumstance)”; see im- 2, proviso

Explanation

To improvise means to make something up on the spot, or figure it out as you go. "Our boss decided to improvise his speech at our company meeting and when he started going off-topic, everyone could tell he hadn't prepared in advance." Improvise comes from the Latin word improvisus, meaning "unforeseen, unexpected." Think about when something unexpected happens to you — you have no choice but to react in the moment, or improvise. Another meaning for improvise refers to acting onstage without a script. When actors improvise scenes for an audience, they create funny situations as they go, without having anything pre-planned. The Second City theater in Chicago made this type of comedy famous, with many well-known alumni like Tina Fey and Stephen Colbert.

Keep Reading on Vocabulary.com

Vocabulary lists containing improvise

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:

But Meg is a true comedian in that she understands not only how to improvise within the lane of the scene, but also the give and take.

From Los Angeles Times Aug. 12, 2026

Watch the export miracle turn into a pumpkin or improvise.

From MarketWatch Jul. 27, 2026

Government contingency plans had "never been stress tested" and officials and ministers were "forced to improvise, establishing new emergency procurement and distribution systems within days".

From BBC Jul. 14, 2026

Part of becoming a confident cook is learning how to improvise your way through a recipe.

From Salon Jun. 16, 2026

Singers in training spent a lot of time learning to improvise with these syllables.

From "Music and the Child" by Natalie Sarrazin

But when Cole solos and improvises, it’s more often in single notes.

From The Wall Street Journal Jan. 1, 2026

An octet of guest artists improvises in certain passages embedded within the score but also plays written-out music with the rest of the orchestra.

From Seattle Times Feb. 21, 2024

It’s also a subtler homage than running a tornado through Kansas in black-and-white: Not until Wayne improvises a story for Scotty around “Dorothy” and rainbows does the connection become blazingly apparent.

From New York Times Dec. 26, 2023

‘Jane Austen Unscripted’ at the Garry Marshall Theatre Attention, “Bridgerton” fans: Impro Theatre improvises full-length Regency-era rom-coms in an outdoor setting in the company’s long-running hit show.

From Los Angeles Times May 8, 2023

He sings and improvises his own poems while he plays.

From "The Mona Lisa Vanishes" by Nicholas Day

A new study led by researchers at the University of Bologna suggests that the markings were far more organized than simple scratches or improvised decorations.

From Science Daily Aug. 9, 2026

One, who said he was aged 17, pointed out an improvised structure of bars and pallets where he and his friends had been sleeping.

From Barron's Aug. 1, 2026

The composer improvised his way through the initial stages of “Pray for a Storm,” his high-energy collaboration with famed drummer Stewart Copeland.

From Los Angeles Times Jul. 28, 2026

Fighting in Iraq and Afghanistan, the Pentagon repeatedly turned to private companies for help addressing deadly challenges such as improvised explosive devices.

From The Wall Street Journal Jun. 29, 2026

Polyrhythm, as it has since been dubbed, had long existed in African tribal drumming, improvised on the spot by highly intuitive, skillful players, often in various states of trance.

From "The Story of Music" by Howard Goodall

He sometimes rapped his jokes, thrived at improvising and roasted celebrities with sharp punches, leaving them in splits.

From BBC Jul. 1, 2026

The crew found "a harmony" like "dancing together", taking no special direction and improvising a lot.

From Barron's Jun. 19, 2026

At times, the piano players in his groups would simply back off during part of Rollins’ solos, loath to risk following the twisting pathways of his improvising.

From Los Angeles Times May 26, 2026

Greek yogurt is one of the few ingredients that has matched my energy in the kitchen: constantly improvising, making it work with what I got, and never letting things go to waste.

From Salon Apr. 28, 2026

Therefore I propose that someone with a keen sense of the theatrical, a talent for mimicry and improvising dialogue—a playwright, perhaps?—be engaged as an understudy to the ghost, as it were.”

From "The Unseen Guest" by Maryrose Wood

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