Dictionary.com
Thesaurus.com
Synonyms

improvise

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

verb (used with object)

  • improvises,
    present (3rd person singular)
  • improvised,
    past participle,  past
  • improvising
    present participle
  1. An image of the word improvise as defined by to compose and perform or deliver without previous preparation; extemporize.

    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

Other Word Forms

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future


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:

A cybersecurity incident at a private contractor has halted the nation’s bankruptcy-noticing system for a week, forcing courts across the country to improvise emergency measures as the company works to restore service.

From The Wall Street Journal ● Oct. 16, 2026

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

As producer he helps the children prepare for interviews and research their guests, but encourages them to improvise and follow the direction of an interview rather than sticking to a set script.

From BBC ● Jun. 30, 2026

But we were going to have to improvise.

From "The Last Olympian" by Rick Riordan

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

From The Wall Street Journal ● Jan. 1, 2026

The animatronic improvises in conversation based on a story outline written by Woliner and Notarnicola.

From Los Angeles Times ● Dec. 8, 2025

Performed in pairs, it is led by the first and most prominent pair which improvises various figures, such as raising joined hands to form bridges under which other dancers can pass.

From Seattle Times ● Feb. 19, 2024

Gilles improvises; not knowing a lick of Persian, he invents words, eventually using the names of prisoners kept in a logbook as mnemonic devices to develop his fictional tongue.

From New York Times ● Jun. 8, 2023

He sings and improvises his own poems while he plays.

From "The Mona Lisa Vanishes" by Nicholas Day

The army has set up an improvised morgue in Toledo because the city's existing facility could not receive all the corpses.

From Barron's ● Oct. 30, 2026

British counterterrorism police said Tuesday that the vans didn’t contain improvised explosives, but they recovered some fuel in the vehicles.

From The Wall Street Journal ● Sep. 29, 2026

LaManna improvised a stand to hold the fragile scroll while rotating it through an X-ray beam.

From Science Daily ● Sep. 26, 2026

And props are improvised so that pool noodles are used for jousting and an earbud case serves as an engagement ring.

From Los Angeles Times ● Sep. 5, 2026

At Tutwiler, women are crammed into dormitories and improvised living spaces.

From "Just Mercy" by Bryan Stevenson

For Leon Berkers, whose restaurant boat has been stuck in the mud for more than a month, adaptation has so far meant improvising fixes to keep "pots and pans from flying around."

From Barron's ● Aug. 15, 2026

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

From BBC ● Jul. 1, 2026

Israeli soldiers in Lebanon said that units were scrambling and were now improvising solutions such as covering military equipment and outposts with nets to trap the drones, a method Ukraine has long relied on.

From The Wall Street Journal ● May 1, 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

Random Word

Spin the wheel and learn a new word!

Get a word


Vocabulary.com logo
by dictionary.com

Just like flashcards, but way more fun

Don't take our word for it. Leave the boring studying behind and join VocabTrainer today. You'll learn even faster and never look back.

Take me to Vocabulary.com