men·​dac·​i·​ty | \ men-ˈda-sə-tē How to pronounce mendacity (audio) \
plural mendacities

Definition of mendacity

1 : the quality or state of being mendacious to blow the whistle on mendacity and hypocrisy— Geoffrey Wolff
2 : lie mendacities of the singer's manager

Keep scrolling for more

Examples of mendacity in a Sentence

highly fictionalized “memoirs” in which the facts were few and the mendacities many you need to overcome this deplorable mendacity, or no one will ever believe anything you say
Recent Examples on the Web Writing in these pages last year, Fintan O’Toole adeptly analyzed the prime minister’s compulsive mendacity. Ian Johnson, The New York Review of Books, "A Difficult Birth in Britain’s Stressed Health Service," 4 June 2020 The Chinese example, even discounting for the habitual mendacity of the Xi government, indicates that this could certainly happen within the more than seven months that remain before the election. Conrad Black, National Review, "Breaking Down the Political Fallout from Coronavirus," 17 Mar. 2020 Some of the ads were standard fare about national security or the debt; others were designed to help Trump’s mendacity and nativism go viral on social media, where lies and fractious memes are disproportionately likely to be amplified. Andrew Marantz, The New Yorker, "The Man Behind Trump’s Facebook Juggernaut," 2 Mar. 2020 This election has been marinated in mendacity: big lies and small lies; quarter truths and pseudo-facts; distortion, dissembling and disinformation; and digital skulduggery on an industrial scale. The Economist, "Bagehot Truth has been the first casualty of Britain’s election," 5 Dec. 2019 What is new is the degree to which voters are prepared to back leaders who seem to revel in their mendacity. The Economist, "You really can fool some of the people, all of the time," 2 Nov. 2019 The Atlantic is proud to publish such hate-inducing mendacity. Dennis Prager, National Review, "Chronicling the Left’s Lies," 6 Aug. 2019 In 2016, his energy, and popularity — and, critics say, mendacity — played a key role in the EU referendum campaign. Washington Post, "Boris Johnson’s chaotic path to power finally pays off," 23 July 2019 His creepy persona reflects the winking mendacity and distracting stunts that typify his real-life rule. The Economist, "A bold new play about Alexander Litvinenko’s murder," 5 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mendacity.' 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 mendacity

1646, in the meaning defined at sense 1

Keep scrolling for more

Learn More about mendacity

Time Traveler for mendacity

Time Traveler

The first known use of mendacity was in 1646

See more words from the same year

Statistics for mendacity

Last Updated

17 Jul 2020

Cite this Entry

“Mendacity.” Dictionary, Merriam-Webster, Accessed 8 Aug. 2020.

Keep scrolling for more

More Definitions for mendacity


How to pronounce mendacity (audio)

English Language Learners Definition of mendacity

formal : lack of honesty : the condition of being mendacious

Keep scrolling for more

More from Merriam-Webster on mendacity

Thesaurus: All synonyms and antonyms for mendacity

Rhyming Dictionary: Words that rhyme with mendacity

Britannica English: Translation of mendacity for Arabic Speakers

Comments on mendacity

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


Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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