mendacious

CIDE DICTIONARY

mendacious, a. [L. mendax, -acis, lying, cf. mentiri to lie.].

•  Given to deception or falsehood; lying; as, a mendacious person.  [1913 Webster]
•  False; counterfeit; containing falsehood; as, a mendacious statement.  [1913 Webster]

OXFORD DICTIONARY

mendacious, adj. lying, untruthful.

Derivative

mendaciously adv. mendacity n. (pl. -ies).

Etymology

L mendax -dacis perh. f. mendum fault

DEVIL DICTIONARY

mendacious

adj. Addicted to rhetoric.

THESAURUS

mendacious

deceitful, dishonest, equivocal, equivocating, erroneous, fallacious, false, fibbing, forsworn, knavish, lying, paltering, perjured, prevaricating, roguish, shifty, spurious, truthless, untruthful, unveracious, wrong

ROGET THESAURUS

mendacious

Falsehood

N falsehood, falseness, falsity, falsification, deception, untruth, guile, lying, untruth, guile, lying, misrepresentation, mendacity, perjury, false swearing, forgery, invention, fabrication, subreption, covin, perversion of truth, suppression of truth, suppressio veri, perversion, distortion, false coloring, exaggeration, prevarication, equivocation, shuffling, fencing, evasion, fraud, suggestio falsi, mystification, simulation, dissimulation, dissembling, deceit, blague, sham, pretense, pretending, malingering, lip homage, lip service, mouth honor, hollowness, mere show, mere outside, duplicity, double dealing, insincerity, hypocrisy, cant, humbug, jesuitism, jesuitry, pharisaism, Machiavelism, organized hypocrisy, crocodile tears, mealy-mouthedness, quackery, charlatanism, charlatanry, gammon, bun-kum, bumcombe, flam, bam, flimflam, cajolery, flattery, Judas kiss, perfidy, il volto sciolto i pensieri stretti, unfairness, artfulness, misstatement, false, deceitful, mendacious, unveracious, fraudulent, dishonest, faithless, truthless, trothless, unfair, uncandid, hollow-hearted, evasive, uningenuous, disingenuous, hollow, sincere, Parthis mendacior, forsworn, artificial, contrived, canting, hypocritical, jesuitical, pharisaical, tartuffish, Machiavelian, double, double tongued, double faced, double handed, double minded, double hearted, double dealing, Janus faced, smooth-faced, smooth spoken, smooth tongued, plausible, mealy-mouthed, affected, collusive, collusory, artful, perfidious, spurious, untrue, falsified, covinous, falsely, a la tartufe, with a double tongue, silly, blandae mendacia lingua, falsus in uno falsus in omnibus, I give him joy that's awkward at a lie, la mentira tiene las piernas cortas, O what a goodly outside falsehood hath.