pre·​pos·​ter·​ous | \ pri-ˈpä-st(ə-)rəs How to pronounce preposterous (audio) \

Definition of preposterous

: contrary to nature, reason, or common sense : absurd

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Other Words from preposterous

preposterously adverb
preposterousness noun

Synonyms & Antonyms for preposterous



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Examples of preposterous in a Sentence

The whole idea is preposterous! the idea that extraterrestrials built the pyramids is preposterous
Recent Examples on the Web The premise has potential, and yields some clever twists that don’t include Marla’s clumsy and preposterous transformation into an action heroine, or the script’s transformation into a sendup of predatory capitalism. Joe Morgenstern, WSJ, "‘I Care a Lot’ Review: Guardian as Grifter," 18 Feb. 2021 The Sunday spectacular has been fed a steady and fatty diet of preposterous claims and Grecian idolatry by both networks almost to the point of digestive revolt. Jerry Nason,, "Super Bowl I arrived with a splash back in 1967," 17 Jan. 2021 Desperate people do irrational things like give Malzahn a preposterous buyout, or, worse, fire Malzahn only to offer someone like Lane Kiffin an equally absurd contract. Joseph Goodman |, al, "Auburn football looks desperate in search for coach," 22 Dec. 2020 Manute Bol was looming on the perimeter, ready to sling a preposterous 3-pointer that just might fall. Bruce Jenkins,, "Warriors’ first mission has always been: Leave fans wanting more," 18 Dec. 2020 Think Lafayette Square and the vast show of force that sent peaceful protesters reeling and bloodied so that President Trump could strike his preposterous pose with the Bible., "A sorry spectacle we all knew was coming," 6 Jan. 2021 The suggestion is so preposterous that you’ll be tempted to dismiss it completely. New York Times, "Andy Cohen Had a Year," 30 Dec. 2020 The whole enterprise was simultaneously preposterous, misleading, and grade D journalism. Jeff Pearlman,, "An inside look at Shaq’s jump from Magic to Lakers," 21 Dec. 2020 While seemingly preposterous, the plot flows naturally as their new guardian struggles to overcome her own past while helping the children avoid being cast aside as inconvenient oddities by their parents. Monitor Readers, The Christian Science Monitor, "Bite-size book reviews: Fiction our readers loved in 2020," 18 Dec. 2020

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

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First Known Use of preposterous

1533, in the meaning defined above

History and Etymology for preposterous

Latin praeposterus, literally, in the wrong order, from prae- + posterus hinder, following — more at posterior

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Time Traveler for preposterous

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The first known use of preposterous was in 1533

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Statistics for preposterous

Last Updated

26 Feb 2021

Cite this Entry

“Preposterous.” Dictionary, Merriam-Webster, Accessed 2 Mar. 2021.

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More Definitions for preposterous



English Language Learners Definition of preposterous

: very foolish or silly


pre·​pos·​ter·​ous | \ pri-ˈpä-stə-rəs How to pronounce preposterous (audio) \

Kids Definition of preposterous

: making little or no sense : foolish a preposterous excuse

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