Synonym Chooser

How does the adjective untruthful differ from other similar words?

Some common synonyms of untruthful are deceitful, dishonest, and mendacious. While all these words mean "unworthy of trust or belief," untruthful stresses a discrepancy between what is said and fact or reality.

an untruthful account of their actions

When is deceitful a more appropriate choice than untruthful?

The words deceitful and untruthful 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 would dishonest be a good substitute for untruthful?

While the synonyms dishonest and untruthful are close in meaning, dishonest implies a willful perversion of truth in order to deceive, cheat, or defraud.

a swindle usually involves two dishonest people

When might mendacious be a better fit than untruthful?

While in some cases nearly identical to untruthful, 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

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 untruthful However, Miranda, Assad, and Arroyo routinely failed in their obligations to cooperate with the investigation by delaying responses, refusing to provide certain information or documents, and providing inconsistent or untruthful responses. Chris Deubert, Forbes, 19 Nov. 2024 On Wednesday, the defense attacked Marquez’s credibility, questioning his motives for cooperating with the FBI and grilling him over episodes in his background that might paint him as untruthful. Megan Crepeau, Chicago Tribune, 13 Nov. 2024 What is more untruthful: A thing written down, or a sustained deception of the heart? Nicolette Polek, Harper's Magazine, 2 July 2024 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 See All Example Sentences for untruthful
Recent Examples of Synonyms for untruthful
Adjective
  • Lauber ruled that discounted cash flow valuation of land is erroneous as a matter of law.
    Peter J Reilly, Forbes.com, 29 Aug. 2025
  • One subject of a Raffi Khatchadourian piece complained that multiple details about his life were made up and demanded to know what idiot had given Khatchadourian the erroneous details.
    Zach Helfand, New Yorker, 25 Aug. 2025
Adjective
  • While this might not sound like a large number of soldiers for an entire continent, the number itself is misleading.
    Daniel R. DePetris, MSNBC Newsweek, 3 Sep. 2025
  • But that figure is misleading if interpreted as a direct price for data.
    Seth Joseph, Forbes.com, 2 Sep. 2025
Adjective
  • That is a silly and inaccurate oversimplification.
    Laura Washington, Chicago Tribune, 3 Sep. 2025
  • Excess heat can harm the oven's thermostat and heating elements, leading to inaccurate temperature readings and possible permanent damage, along with a fire risk.
    Katie Rosenhouse, Southern Living, 31 Aug. 2025
Adjective
  • Industry groups insist that they are committed to weeding out dishonest companies that make false claims or sell dangerous products.
    Suzy Khimm, NBC news, 26 Aug. 2025
  • No, it was done to protect dishonest businesses.
    U T Editorial Board, San Diego Union-Tribune, 22 Aug. 2025
Adjective
  • Shopping for a new kitchen sink can be daunting since an incorrect decision can be expensive.
    BestReviews, Chicago Tribune, 5 Sep. 2025
  • An error occurred during the issuance of the test certificates due to incorrect entry of IP addresses.
    Dan Goodin, ArsTechnica, 4 Sep. 2025
Adjective
  • At Comedy Central, Colbert rose to prominence playing a slightly exaggerated version of Bill O’Reilly and other unapologetically mendacious Fox News pundits from the George W. Bush years.
    Alan Sepinwall, Rolling Stone, 18 July 2025
  • The true story reveals both how freedom of speech first came to be conceived of as a mechanism for truth, an antidote to falsehood, and the foundation of all liberty—and that, ironically, this new and powerful theory was itself a deliberately mendacious fiction.
    Fara Dabhoiwala, Harpers Magazine, 4 June 2025
Adjective
  • Parasite The first non-English language film to win a Best Picture Oscar, Bong Joon-ho's Parasite centers on the Kims, who live on the wrong side of the tracks in Seoul, South Korea.
    Emy LaCroix, PEOPLE, 8 Sep. 2025
  • Joveljic stepped up and placed the penalty kick into his right-hand corner, while goalkeeper Brad Stuver dove the wrong way.
    Daniel Sperry, Kansas City Star, 8 Sep. 2025
Adjective
  • Representatives for James have called the fraud claims made against her politically motivated and false.
    Robert Faturechi, ProPublica, 6 Sep. 2025
  • On the next play, Taylor was called for a false-start penalty.
    Pete Grathoff, Kansas City Star, 6 Sep. 2025

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Cite this Entry

“Untruthful.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/untruthful. Accessed 9 Sep. 2025.

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