im·​prob·​a·​ble | \ (ˌ)im-ˈprä-bə-bəl How to pronounce improbable (audio) , -ˈpräb-bəl \

Definition of improbable

: unlikely to be true or to occur also : unlikely but real or true

Keep scrolling for more

Other Words from improbable

improbability \ (ˌ)im-​ˌprä-​bə-​ˈbi-​lə-​tē How to pronounce improbable (audio) \ noun
improbably \ (ˌ)im-​ˈprä-​bə-​blē How to pronounce improbable (audio) , -​ˈpräb-​blē \ adverb

Synonyms & Antonyms for improbable



Visit the Thesaurus for More 

Examples of improbable in a Sentence

The team made an improbable comeback. it seems improbable that the two writers never met since they traveled in the same social circles
Recent Examples on the Web Still, not playing the extra minutes while attempting an improbable comeback certainly could prove beneficial. oregonlive, "Damian Lillard says sore knee shouldn’t be a problem; Portland Trail Blazers vs. Brooklyn Nets: Preview, time, TV channel, live stream," 23 Mar. 2021 Then came an improbable comeback nobody believed was possible. Andrew Beaton, WSJ, "Tiger Woods Hospitalized With Multiple Leg Injuries After L.A. Car Accident," 24 Feb. 2021 Trump, an avid golfer, awarded Woods the Presidential Medal of Freedom after Woods completed an improbable comeback to golf that culminated in him winning the 2019 Masters Tournament. Michael Lee, Washington Examiner, "Trump issues statement on Tiger Woods after legendary golfer hospitalized in major car crash," 23 Feb. 2021 Female power is best seen when it’s a physical force, a whirling and physically improbable high kick delivered with panache along with a sharp quip. Kathryn Vanarendonk, Vulture, "The Nevers Is an Unimpressive Monument to Joss Whedon’s Obsessions," 9 Apr. 2021 The last time the Masters was held in April, Tiger Woods pulled off an improbable and emotional career comeback to win the 2019 tournament for his fifth green jacket. Sam Farmer, Los Angeles Times, "Tiger Woods isn’t at the Masters, but he’s on minds of golfers at Augusta," 7 Apr. 2021 The book’s title invokes Donald Trump’s 2016 campaign slogan, and Trump’s outsized career and improbable and catastrophic presidency are woven throughout its 40-year narrative of decline. Washington Post, "A modern-day historian writes the timeline of American decline," 2 Apr. 2021 During the Occupy protests, organizers’ call to cancel debt was ridiculed as both elitist and improbable. Clio Chang, The New Republic, "Either We Break Our Pandemic Debts or Our Pandemic Debts Break Us," 1 Mar. 2021 The improbable story began during an the winter of 1973, when Karen lost her wedding band at her grandmother's house in Chicago. Alaa Elassar, CNN, "A woman who lost her wedding ring 50 years ago got it back on Valentine's Day," 20 Feb. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'improbable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of improbable

1598, in the meaning defined above

History and Etymology for improbable

Middle French or Latin; Middle French, from Latin improbabilis, from in- + probabilis probable

Keep scrolling for more

Learn More about improbable

Time Traveler for improbable

Time Traveler

The first known use of improbable was in 1598

See more words from the same year

Statistics for improbable

Last Updated

3 May 2021

Cite this Entry

“Improbable.” Dictionary, Merriam-Webster, Accessed 14 May. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for improbable



English Language Learners Definition of improbable

: not probable : not likely to be true or to happen


im·​prob·​a·​ble | \ im-ˈprä-bə-bəl How to pronounce improbable (audio) \

Kids Definition of improbable

: not likely : not probable improbable stories

Other Words from improbable

improbably \ -​blē \ adverb an improbably happy ending

Comments on improbable

What made you want to look up improbable? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Words Used by Nabokov Quiz

  • image1676440788
  • Choose the best definition or synonym for the word in bold: "There are some eructations that sound like cheers—at least, mine did." Lolita
Name That Thing

Test your visual vocabulary with our 10-question challenge!

 AlphaBear 2

Spell words. Make bears.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!