IMPROMPTU Synonyms: 89 Similar and Opposite Words

impromptu 1 of 3

adjective

im-ˈpräm(p)-(ˌ)tü

Definition of impromptu

as in improvised

made or done without previous thought or preparation our dinner guest thanked us with an impromptu song

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impromptu

2 of 3

noun

as in improvisation

something that is performed, made, or done without preparation although five different lines had been written, the best choice turned out to be an impromptu from the tired actor himself

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Antonyms & Near Antonyms

impromptu

3 of 3

adverb

as in spontaneously

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of impromptu

Adjective

In September 2026, Janelle looked back on an impromptu afternoon at a local winery, which inspired the tradition. — Jane Lacroix, PEOPLE, 8 Nov. 2026 By the finale, Joanne had converted and the two had an impromptu wedding on the beach, while the duo’s siblings, Sasha (Timothy Simons) and Morgan (Justine Lupe), had embarked on a complicated romance. — Nellie Andreeva, Deadline, 6 Nov. 2026 The Ravens are starting third string QB Joe Fagnano, who is nursing an ankle on a short week after his impromptu debut in Buffalo. — Hank Gola, New York Daily News, 5 Nov. 2026 For morning de-puffing, place toner pads on your face for an impromptu bootleg sheet mask moment. — Rosa Jisoo Pyo, InStyle, 2 Nov. 2026 See All Example Sentences for impromptu

Recent Examples of Synonyms for impromptu

Adjective

Carlos Montenegro California Department of Corrections and Rehabilitation Prison officials did not provided details on the circumstances of the attack but said two improvised weapons were found at the scene.

— Senior Editor, CBS News, 28 Oct. 2026
Prison staff discovered two improvised weapons at the scene, according to CDCR.

— Daniel Lempres, Sacbee.com, 27 Oct. 2026

Definition of improvised

Noun

The foundation’s late-night sessions also allow musicians to join the performances, continuing a tradition of collaboration and improvisation that has defined Kansas City jazz for generations.

— Kansas City Star, Kansas City Star, 5 Nov. 2026
However recognizable the structures may be—isolated phrases giving way to longform improvisation—the performance finds Taylor in a transitional period, one in which the ephemerality of the moment pushed its musicians to bold new places.

— Levi Dayan, Pitchfork, 3 Nov. 2026

Definition of improvisation

Adverb

When the officer stopped him at the home, Joseph spontaneously admitted to taking the vehicle, according to the affidavit.

— Ana Maria Soler, CBS News, 4 Nov. 2026
As the nanoparticles come together, the flexible connectors spontaneously reorganize to maximize bond stability.

— Mrigakshi Dixit, Interesting Engineering, 2 Nov. 2026

Definition of spontaneously

Adjective

The free event allows musicians to collaborate in front of an audience while giving visitors an opportunity to experience the improvisational tradition that helped establish Kansas City’s reputation as a jazz capital.

— Kansas City Star, Kansas City Star, 5 Nov. 2026
The New Stanford Prison Experiment, Netflix’s take on a project that was always more convincing as improvisational theater than as scientific research, isn’t even television’s first crack at Zimbardo’s study.

— Judy Berman, Time, 21 Oct. 2026

Definition of improvisational

Adverb

And even though his signature coalition of the willing, the Board of Peace, has potential, it was thrown together haphazardly.

— Charles Kupchan, Foreign Affairs, 19 Oct. 2026
Each of the nine beauty favorites below can be haphazardly thrown from your vanity into your bag and through TSA.

— ElleAnna Revell, Condé Nast Traveler, 14 Oct. 2026

Definition of haphazardly

Adverb

Losing the controller connection does not automatically mean losing GPS navigation.

— Kaif Shaikh, Interesting Engineering, 8 Nov. 2026
Bronco fans may be somewhat aggrieved that Madsen will automatically slide back into the starting spot, given what Cutforth has done over the last two weeks.

— Shaun Goodwin, Idaho Statesman, 7 Nov. 2026

Definition of automatically

Adverb

But that's not the case for VA loans, since the VA abruptly ended the program.

— Quil Lawrence, NPR, 30 Oct. 2026
The chief executive of California’s High Speed Rail Authority abruptly resigned amid intensifying scrutiny over cost overruns, project delays and wasteful expenses.

— Los Angeles Times, Los Angeles Times, 29 Oct. 2026

Definition of abruptly

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improbably

impromptu

impromptus

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“Impromptu.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impromptu. Accessed 15 Nov. 2026.

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Synonyms of impromptu

adjective

noun

adverb

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