IMPROBABLE Synonyms: 42 Similar and Opposite Words

improbable

adjective

(ˌ)im-ˈprä-bə-bəl

Definition of improbable

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

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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 improbable The improbable comeback on Sunday, Alec Bohm’s thrilling walk-off on Friday, the Kyle Schwarber homers into the corn that started the whole thing have dramatically changed the team’s outlook in less than two weeks. — Charlotte Varnes, New York Times, 25 Aug. 2026 An improbable preparation that somehow manages to be immediately familiar and comforting, this cheeseburger fried rice is a little peek into all the fun going down at Agnes and Sherman in Houston, one of our Best New Restaurants of 2026. — Nick Wong, Bon Appetit Magazine, 24 Aug. 2026 The start of high school seemed an improbable milestone for Matthew almost 15 years ago, when he was born with an extremely rare and often fatal form of brain cancer. — Angie Leventis Lourgos, Chicago Tribune, 22 Aug. 2026 With no current agreement with developer Yukes, a direct sequel is highly improbable. — Alfred Konuwa, Forbes.com, 21 Aug. 2026 See All Example Sentences for improbable

Recent Examples of Synonyms for improbable

unlikely

Adjective

The two most prominent, Hebrew and Yiddish, have always been unlikely bedfellows, frequently fighting with each other.

— Ilan Stavans, The Conversation, 31 Aug. 2026
Initial support is near the breakout point around $660, although a pullback of that magnitude is unlikely.

— Katie Stockton, CNBC, 31 Aug. 2026

Definition of unlikely

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improbability

improbable

improbably

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

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Synonyms of improbable

adjective

Example Sentences

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