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Definition of untruthfulnext

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 Officers making contact with Hyatt noted an odor of intoxicants, staggering gait, confusion and illogical, untruthful responses to questions, according to the motion. Arkansas Online, 18 Aug. 2025 The deficient vice of integrity is being fake, untruthful, inconsistent, unprincipled, and manipulative. Mary Crossan, Forbes.com, 17 July 2025 During the trial, prosecutors showed videos of the multiple interviews Troconis had with law enforcement and accused her of being untruthful about Farber Dulos’ disappearance. Justin Muszynski, Hartford Courant, 21 Apr. 2025 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
  • Quick hits — Canales told reporters that the refs in the Panthers’ loss to the Bucs on Saturday never gave the Panthers the chance to replay a critical down after an erroneous whistle stopped it dead.
    DIAMOND VENCES, Charlotte Observer, 5 Jan. 2026
  • In Wiggins case, the court ruled the trial judge gave erroneous legal instructions to the jury.
    Stephen Swanson, CBS News, 22 Dec. 2025
Adjective
  • Experts immediately pointed out that Hassett had used a misleading method known as a cubic fit to make the mortality data appear less frightening.
    Rogé Karma, The Atlantic, 7 Jan. 2026
  • For its misleading omissions, the Times story deserves a flunking grade.
    Orlando Sentinel, The Orlando Sentinel, 7 Jan. 2026
Adjective
  • Minneapolis Mayor Jacob Frey rejected claims that the officer acted in self-defense, saying after viewing the video that the federal account was inaccurate, as previously noted by The Center Square.
    Center Square, The Washington Examiner, 9 Jan. 2026
  • That demeaning statement has proven both accurate and inaccurate, depending on the president’s relationship with the vice president, their skill set, experience, and political ambition.
    Myra Adams, Washington Post, 9 Jan. 2026
Adjective
  • Multiple points of validation will help combat dishonest applicants, DEED Deputy Commissioner Evan Rowe told lawmakers at the time.
    Alex Derosier, Twin Cities, 6 Jan. 2026
  • Thai Diner Yes, Thai Diner is technically in NoLita, but leaving it out would feel even more dishonest.
    Molly Barstein, Vogue, 18 Dec. 2025
Adjective
  • Everything was really incorrect for the period—shiny, sparkly, overdone—but the actual shapes and silhouettes of his clothes are quite accurate.
    Radhika Seth, Vogue, 10 Jan. 2026
  • Avoid harsh or incorrect cleaners and follow manufacturer guidance to protect coatings, airflow, and internal components.
    Katie Cloyd, Martha Stewart, 10 Jan. 2026
Adjective
  • In the dry California hills, an intentional community tries to build a pyre for one of its own, and, in the complex and mendacious aftermath, may end up sort of burning down the nation-state.
    Helen Shaw, New Yorker, 14 Dec. 2025
  • To claim the opposite rings hollow at best, if not mendacious.
    Literary Hub, Literary Hub, 10 Dec. 2025
Adjective
  • As analysis, that’s not wrong, but where’s the sting of it inside this bizarre bonbon of a musical?
    Sara Holdren, Vulture, 10 Nov. 2025
  • Despite his brilliance and intellect, he was prevented from having a full life by being born on the wrong side of Israel’s separation fence.
    Literary Hub, Literary Hub, 10 Nov. 2025
Adjective
  • Plants that provide winter interest, including sedums, goldenrod, blue false indigo, and ornamental grasses.
    Lauren Landers, Better Homes & Gardens, 11 Jan. 2026
  • Today’s teenagers can produce a TikTok video in minutes, but how many of them will learn to analyze the president’s false claim that Tylenol causes autism?
    Mary Ellen Klas, Twin Cities, 11 Jan. 2026

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Cite this Entry

“Untruthful.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/untruthful. Accessed 13 Jan. 2026.

More from Merriam-Webster on untruthful

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