Synonym Chooser

How does the adjective mendacious differ from other similar words?

Some common synonyms of mendacious are deceitful, dishonest, and untruthful. While all these words mean "unworthy of trust or belief," mendacious may suggest bland or even harmlessly mischievous deceit and when used of people often suggests a habit of telling untruths.

mendacious tales of adventure

When is deceitful a more appropriate choice than mendacious?

The words deceitful and mendacious are synonyms, but do differ in nuance. Specifically, deceitful usually implies an intent to mislead and commonly suggests a false appearance or double-dealing.

the secret affairs of a deceitful spouse

When might dishonest be a better fit than mendacious?

In some situations, the words dishonest and mendacious are roughly equivalent. However, dishonest implies a willful perversion of truth in order to deceive, cheat, or defraud.

a swindle usually involves two dishonest people

In what contexts can untruthful take the place of mendacious?

The meanings of untruthful and mendacious largely overlap; however, untruthful stresses a discrepancy between what is said and fact or reality.

an untruthful account of their actions

Example Sentences

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 mendacious Florida’s mendacious leaders only darken the nightmare. Jake Cline, Washington Post, 8 July 2024 The mendacious Gray Heron lures Mahito into a dreamlike world with the possibility of bringing back his deceased mother. Eric Vilas-Boas, Vulture, 10 Mar. 2024 This is a crabbed and mendacious interpretation of the law. Michael Hiltzik, Los Angeles Times, 5 Apr. 2024 The administration of President Joe Biden has been steadfast in its refusal to criticize López Obrador’s security policies, avoiding confrontation even when the Mexican president has publicly attacked U.S. law-enforcement agencies as mendacious and corrupt. Tim Golden, ProPublica, 31 Jan. 2024 See All Example Sentences for mendacious
Recent Examples of Synonyms for mendacious
Adjective
  • Out of all the ugly and dishonest things that Donald Trump said about Volodymyr Zelensky last week, the ugliest was not dishonest at all.
    Anne Applebaum, The Atlantic, 24 Feb. 2025
  • But the contestant also feels that some of those accusing her of dishonest gameplay need only look in the mirror.
    EW.com, EW.com, 12 Feb. 2025
Adjective
  • The Trump administration’s focus on the false narrative that Politico received USAID funds follows an erroneous claim by Kyle Becker, a conservative political commentator, on Wednesday.
    Liam Reilly, CNN, 5 Feb. 2025
  • If the cost looks erroneous, please email content@bayareanewsgroup.com for more information.
    Bay Area News Group, The Mercury News, 3 Feb. 2025
Adjective
  • President Donald Trump’s decision to withdraw the United States from the Paris climate agreement on June 1 was terribly misguided, and his justification for doing so was misleading and untruthful.
    Robert N. Stavins, Foreign Affairs, 5 June 2017
  • What is more untruthful: A thing written down, or a sustained deception of the heart?
    Nicolette Polek, Harper's Magazine, 2 July 2024
Adjective
  • Post misconstrues video of Trump at Gabbard's swearing-in ceremony The Threads post appeared to draw a false conclusion from Salcedo's remarks about not seeing Gabbard being sworn in during the Feb. 12 edition of his program.
    Andre Byik, USA TODAY, 25 Feb. 2025
  • In 2018, McFarland was sentenced to six years in prison after pleading guilty to charges of wire fraud, bank fraud and making false statements to federal law enforcement, the US attorney’s office for the Southern District of New York confirmed to CNN at the time.
    Alli Rosenbloom, CNN, 24 Feb. 2025

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Cite this Entry

“Mendacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/mendacious. Accessed 3 Mar. 2025.

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