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 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 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 Phelan, largely brushing off Covey's attacks as politically motivated and untruthful, has stuck to his reputation of having represented the district through several election cycles, running unopposed over the past several, and his work to advance border security legislation and funding last year. Hogan Gore, Austin American-Statesman, 20 May 2024 Our choice is the person who says the most outrageous, offensive and untruthful things, or the person who is subjected to those insults and lies. Letters To The Editor, The Mercury News, 29 Oct. 2024 See All Example Sentences for untruthful
Recent Examples of Synonyms for untruthful
Adjective
  • But at these later stages, none of the remaining instances were in an erroneous state.
    John Timmer, ArsTechnica, 6 June 2025
  • Meta said that its new policies had helped reduce erroneous content removals in the US by half without broadly exposing users to more offensive content than before the changes.
    Paresh Dave, Wired News, 29 May 2025
Adjective
  • Ortega also explained that her age makes people assume an inaccurate sense of naiveté.
    Wesley Stenzel, EW.com, 28 May 2025
  • But this is inaccurate as grid-scale storage batteries (BESS) can resolve this problem.
    Ian Dexter Palmer, Forbes.com, 27 May 2025
Adjective
  • Harvard’s dishonest expert on honesty is a poignant symbol of a far larger problem in academia: ideological allegiance replacing the quest for truth.
    Andrew Follett, National Review, 31 May 2025
  • On one hand, the inquiry appeared to play into his rivals’ criticisms of Mr. Cuomo as a dishonest broker, who has been accused of putting nursing home residents at risk during the coronavirus pandemic and seeking to cover it up.
    Nicholas Fandos, New York Times, 21 May 2025
Adjective
  • The senators are incorrect three times, and surely more.
    John Tamny, Forbes.com, 2 June 2025
  • But here’s the twist: both might technically be incorrect.
    Simon Perry, People.com, 27 May 2025
Adjective
  • Impulsive, egocentric, and mendacious, Trump has, in the same span, set fire to the integrity of his office.
    David Remnick, New Yorker, 27 Apr. 2025
  • Her unsettling command of the character — who was equal parts sweet, vulnerable, mendacious, and menacing — was one of the highlights of the series.
    Jake Kanter, Deadline, 24 Dec. 2024
Adjective
  • For affluent Latino parents Enrique and Ilana Gomez, this moment goes hilariously wrong from the start, when their daughter Yoli invites her Mexican-born intended Marcos over to the family’s Pasadena home for dinner.
    Pam Kragen, San Diego Union-Tribune, 30 May 2025
  • But even putting O’Brien on notice would be an attempt to intimidate and silence a critic, which is plainly wrong.
    Sun Sentinel Editorial Board, Sun Sentinel, 30 May 2025
Adjective
  • The couple was convicted in 2022 of conspiring to defraud banks out of more than $30 million in loans by submitting false documents.
    Eric Tucker, Chicago Tribune, 30 May 2025
  • His career was on a steady rise until a series of accusations and investigations in the mid-2000s — including tax evasion, fraud and making false statements — landed him in prison.
    Rachel Raposas, People.com, 30 May 2025

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Cite this Entry

“Untruthful.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/untruthful. Accessed 10 Jun. 2025.

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