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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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

LeBron James, the cover star for the Time100 Sports issue, later closed out the dinner portion of the evening with an impromptu speech. — Kristen Tauer, Footwear News, 17 July 2026 The neighbor returned minutes later with beers to share with the group, sparking a celebration that quickly turned into a genuine impromptu party. — Pete Grathoff, Kansas City Star, 17 July 2026 Speaking to Us Weekly in 2022, Duhamel discussed his impromptu proposal to Mari, a model. — Hannah Malach, InStyle, 17 July 2026 People don’t need approval to host these impromptu gatherings, said Dash Stolarz, director of public affairs at the Mountains Recreation and Conservation Authority. — Jireh Deng, Los Angeles Times, 13 July 2026 See All Example Sentences for impromptu

Recent Examples of Synonyms for impromptu

Adjective

Likewise, the respite afforded by the twin hydration breaks has also reduced the need for improvised periods of gentlemanly repose, which in turn has lessened the demand for the chilly spray.

— Anthony Crupi, Sportico.com, 17 July 2026
Outside hospitals, temporary shelters and improvised morgues, relatives continue posting photographs and names of missing family members on social media, hoping someone might recognize them or provide information about their fate.

— Antonio María Delgado, Miami Herald, 4 July 2026

Definition of improvised

Noun

The new style of play, which had been rapidly developed and refined during the World Cup, was no longer seen as an improvisation, but rather as yet another stroke of genius from De la Fuente and his players.

— Juan Claudio Matossian, Vanity Fair, 19 July 2026
Apart from the setting, and some idea of a forward time shift, Nunez began writing the piece and left the rest to improvisation.

— Literary Hub, Literary Hub, 14 July 2026

Definition of improvisation

Adjective

The group’s final two albums — Spirit of Eden and Laughing Stock — helped lay the groundwork for what would later be dubbed post-rock, inspiring generations of artists with their spacious, improvisational approach to composition.

— SPIN Staff, SPIN, 20 July 2026
To survive and scale, cannabis businesses must urgently replace improvisational workarounds with standardized systems and real-time monitoring.

— Peter Su, Forbes.com, 7 July 2026

Definition of improvisational

Adverb

Not Considering the Plant’s Future Avoid pruning haphazardly without carefully evaluating the situation first.

— Samantha Johnson, Martha Stewart, 16 July 2026
Hanging your art and photos haphazardly is a quick way to make your collection feel more chaotic than inspiring.

— Betsy Cribb Watson, Southern Living, 11 July 2026

Definition of haphazardly

Adverb

Waymo’s support team is automatically notified if the vehicle crashes, and a roadside assistance representative will come to the collision site to assess the situation in person.

— Amaia Gavica, Miami Herald, 18 July 2026
His resignation automatically triggered a Labour leadership contest.

— ABC News, ABC News, 18 July 2026

Definition of automatically

Adverb

Back in January, Coinbase CEO Brian Armstrong abruptly torpedoed a bipartisan agreement and vote of the Senate Banking Committee Clarity bill.

— Cleve Mesidor, Forbes.com, 21 July 2026
In Texas in 2023, Lilly Livingston, who has Down syndrome and is now 22, was abruptly cut off from Medicaid benefits, according to Livingston's mother, Marie.

— Rachana Pradhan, NPR, 20 July 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 25 Jul. 2026.

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Synonyms of impromptu

adjective

noun

adverb

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