improbable

adjective

(ˌ)im-ˈprä-bə-bəl How to pronounce improbable (audio)
Definition of improbablenext
as in unlikely
not likely to be true or to occur it seems improbable that the two writers never met since they traveled in the same social circles

Synonyms & Similar Words

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Antonyms & Near Antonyms

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 improbable Argentina's road to New York has been paved with improbable wins, one after another. — Becky Sullivan, NPR, 19 July 2026 Defending champion Scottie Scheffler somehow managed to stick around until the end, getting two bad bounces that cost him momentum, then getting one big break for a most improbable birdie but failing to birdie the 18th. — Doug Ferguson, Los Angeles Times, 19 July 2026 Defending champion Scottie Scheffler somehow managed to stick around until the end, getting two bad bounces that cost him momentum, then getting one big break for a most improbable birdie. — Doug Ferguson, Chicago Tribune, 19 July 2026 Pittsburgh jumped out to a 3-0 lead after four innings, which included an improbable RBI double by Esmerlyn Valdez in the third. — ABC News, 18 July 2026 See All Example Sentences for improbable
Recent Examples of Synonyms for improbable
unlikely
Adjective
  • Pulley’s latest balances macro stakes with delightful burgeoning romances and connections between unlikely allies thrown together against the unbelievable.
    — Literary Hub, Literary Hub, 3 Aug. 2026
  • Kavanaugh may seem an unlikely ally in the fight for greater equality.
    — Charles Grantham, Sportico.com, 3 Aug. 2026
Definition of unlikely

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improbability
improbable
improbably
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Cite this Entry

“Improbable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/improbable. Accessed 5 Aug. 2026.

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More from Merriam-Webster on improbable

Nglish: Translation of improbable for Spanish Speakers

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