adjective men·da·cious \ men-ˈdā-shəs \
|Updated on: 4 Aug 2018

Definition of mendacious

: given to or characterized by deception or falsehood or divergence from absolute truth
  • mendacious tales of his adventures





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Examples of mendacious in a Sentence

  1. Indeed, the racist and Malthusian elements in Darwin's work are subjects on which the new secularists are either silent, delicate, or mendacious. —Eugene McCarraherCommonweal15 June 2007
  2. A choice item in the collection of mendacious stories that were circulated about Columbus after his death is this. Columbus lost himself on the way to Hispaniola, and only by virtue of letters and pilots sent by Martín Alonso did he manage to find the island and join Pinta. —Samuel Eliot MorisonAdmiral of the Ocean Sea1942
  3. Mildred had become great friends with her and had given her an elaborate but mendacious account of the circumstances which had brought her to the pass she was in. —W. Somerset MaughamOf Human Bondage1915
  4. The newspaper story was mendacious and hurtful.

  5. that tabloid routinely publishes the most moronically mendacious stories about celebrities

Recent Examples of mendacious from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mendacious.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of mendacious

Latin mendac-, mendax — more at amend

Synonym Discussion of mendacious

dishonest, deceitful, mendacious, untruthful mean unworthy of trust or belief. dishonest implies a willful perversion of truth in order to deceive, cheat, or defraud.
    • a swindle usually involves two dishonest people
deceitful usually implies an intent to mislead and commonly suggests a false appearance or double-dealing.
    • the secret affairs of a deceitful spouse
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
untruthful stresses a discrepancy between what is said and fact or reality.
    • an untruthful account of their actions

MENDACIOUS Defined for English Language Learners


Definition of mendacious for English Language Learners

  • : not honest : likely to tell lies

  • : based on lies

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