• WordNet 3.6
    • adj mendacious given to lying "a mendacious child"
    • adj mendacious intentionally untrue "a mendacious statement"
    • ***
Webster's Revised Unabridged Dictionary
    • Mendacious False; counterfeit; containing falsehood; as, a mendacious statement.
    • Mendacious Given to deception or falsehood; lying; as, a mendacious person.
    • ***
Century Dictionary and Cyclopedia
    • mendacious Given to lying; speaking falsely; falsifying.
    • mendacious Having the character of a lie; false; untrue: as, a mendacious report; mendacious legends.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Mendacious men-dā′shus given to lying: speaking falsely: of the nature of a lie
    • ***


Webster's Revised Unabridged Dictionary
L. mendax, -acis, lying, cf. mentiri, to lie
Chambers's Twentieth Century Dictionary
L. mendax, -acis, conn. with mentīri, to lie.


In literature:

A mendacious biography of the English mystic, Thomas Vaughan.
"Devil-Worship in France" by Arthur Edward Waite
I now come to the most miserable of all, my mendacious one.
"Rattlin the Reefer" by Edward Howard
With this mendacious explanation Gustavus was forced to be content.
"The Swedish Revolution Under Gustavus Vasa" by Paul Barron Watson
I am sure," I declared mendaciously, "there can be nothing to forgive!
"The Lady of the Basement Flat" by Mrs. George de Horne Vaizey
It has thus in many cases been obscurantive and mendacious.
"Introduction to the History of Religions" by Crawford Howell Toy
Bein' a woman, you're too feeble-witted for reason, too mendacious for trooth.
"Faro Nell and Her Friends" by Alfred Henry Lewis
Those who mendaciously accused him of office seeking, should hide their heads for shame.
"Mixed Faces" by Roy Norton
The apologist is mendacious.
"James VI and the Gowrie Mystery" by Andrew Lang
Look at his story, and tell me could anything be more pitiful and mendacious?
"'Laramie;'" by Charles King
A mendacious umbrella is a sign of great moral degradation.
"The Works of Robert Louis Stevenson - Swanston Edition Vol. XXII (of 25)" by Robert Louis Stevenson
A long silence followed Ruth's bravely mendacious assurance.
"Peggy Raymond's Vacation" by Harriet L. (Harriet Lummis) Smith
A treacherous plan is concocted, and to make the perfidy still more flagrant Kriemhilde's innocent cooperation is mendaciously engaged.
"Women of the Teutonic Nations" by Hermann Schoenfeld
The living seed of life, budding in him, cast out all that was false, fictitious or mendacious.
"Klytia" by George Taylor
The best-loved women are the most mendacious.
"Ancient Manners" by Pierre Louys
It labours under great suspicion from the mendacious character of the people, whose credit it was written to support.
"Old English Chronicles" by Various
The bigger the unit you deal with, the hollower, the more brutal, the more mendacious is the life displayed.
"The Letters of William James, Vol. II" by William James
If he would lend himself to their mendacious methods, he might turn them round his finger.
"Expositor's Bible: Ezra, Nehemiah, and Esther" by Walter Adeney
Most of them include the mendacious narrative of the pretended descent of the Mississippi.
"La Salle and the Discovery of the Great West" by Francis Parkman
Homer (says Hippias) considers veracious men, and mendacious men, to be not merely different, but opposite: and I agree with him.
"Plato and the Other Companions of Sokrates, 3rd ed. Volume II (of 4)" by George Grote
True national dignity and glory lie in right doing, and humiliation comes only from public dishonour and a mendacious diplomacy.
"The Life of Mazzini" by Bolton King

In poetry:

There was an Old Person from Gretna,
Who rushed down the crater of Etna;
When they said, 'Is it hot?'
He replied, 'No, it's not!'
That mendacious Old Person of Gretna.
"Limerick:There was an Old Person from Gretna" by Edward Lear

In news:

The Muslim Brotherhood's Mendacious Charm Campaign in Washington.
The Newspaper group described the star's evidence as "mendacious" in its Tuesday edition, and has denied that it hacked his phone.
Mendacious men-DAY-shus (adjective) Given to or characterized by deception or falsehood or divergence from absolute truth -
Mendacious Mitt Romney and Prevaricating Paul Ryan made about as much sense at the Greedy Old Party (GOP) convention as did Cover-up Clint Eastwood talking to an empty chair.
Obama campaign's response to the new mendacious Mitt: Facts.
Romney's Utterly Mendacious (and Effective) New 'Welfare Queen' Attack.
Karl Rove spends $10 million on a smart, mendacious attack ad.
Our Mendacious Ally The Nation.
Mitt Romney's mendacious candidacy both epitomized and exploited his party's estrangement from reality.
Mitt Romney has delivered a lot of dishonest speeches in recent months, but Monday's address on foreign policy may be the most mendacious yet.
The boring, tasteless, and mendacious campaign material that seems to be the fashion for both parties these days certainly could use a shot of humor, and Mallard is just the guy to provide it.
Documentary patiently reveals the mendacious depths of Nazi propaganda.