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See more synonyms for ludicrous on Thesaurus.com
  1. causing laughter because of absurdity; provoking or deserving derision; ridiculous; laughable: a ludicrous lack of efficiency.
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Origin of ludicrous

1610–20; < Latin lūdicrus sportive, equivalent to lūdicr(um) a show, public games (lūdi-, stem of lūdere to play, + -crum noun suffix of instrument or result) + -us -ous
Related formslu·di·crous·ly, adverblu·di·crous·ness, nounun·lu·di·crous, adjectiveun·lu·di·crous·ly, adverbun·lu·di·crous·ness, noun


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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ludicrous

Contemporary Examples

Historical Examples

  • I do not know whether the sight to you would have been pitiful or ludicrous.

  • "There is a ludicrous side to it which you do not see," he said.

  • His surprise would have been ludicrous but for the seriousness of the situation to all concerned.

    Within the Law

    Marvin Dana

  • The way she spoke was ludicrous, but what she said was mostly plain truth.

    The Fortune Hunter

    Louis Joseph Vance

  • Stryker turned upon him an expression at once ludicrous, piteous and hateful.

    The Black Bag

    Louis Joseph Vance

British Dictionary definitions for ludicrous


  1. absurd or incongruous to the point of provoking ridicule or laughter
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Derived Formsludicrously, adverbludicrousness, noun

Word Origin

C17: from Latin lūdicrus done in sport, from lūdus game; related to lūdere to play
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ludicrous


1610s, "pertaining to play or sport," from Latin ludicrus, from ludicrum "a sport, game, toy, source of amusement, joke," from ludere "to play," which, with Latin ludus "a game, play," perhaps is from Etruscan, or perhaps from PIE root *leid- "to play." Sense of "ridiculous" is attested from 1782. Related: Ludicrously; ludicrousness.

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Online Etymology Dictionary, © 2010 Douglas Harper