mendacious

from WordNet (r) 3.0 (2006)

mendacious
    adj 1: given to lying; "a mendacious child"
    2: intentionally untrue; "a mendacious statement"

from The Collaborative International Dictionary of English v.0.48

Mendacious \Men*da"cious\, a. [L. mendax, -acis, lying, cf.
   mentiri to lie.]
   1. Given to deception or falsehood; lying; as, a mendacious
      person.
      [1913 Webster]

   2. False; counterfeit; containing falsehood; as, a mendacious
      statement.
      [1913 Webster] -- {Men*da"cious*ly}, adv. --
      {Men*da"cious*ness}, n.
      [1913 Webster]

from The Devil's Dictionary (1881-1906)

MENDACIOUS, adj.  Addicted to rhetoric.

from Moby Thesaurus II by Grady Ward, 1.0

21 Moby Thesaurus words for "mendacious":
      deceitful, dishonest, equivocal, equivocating, erroneous,
      fallacious, false, fibbing, forsworn, knavish, lying, paltering,
      perjured, prevaricating, roguish, shifty, spurious, truthless,
      untruthful, unveracious, wrong

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