[1] : The Collaborative International Dictionary of English v.0.48

untruth \untruth"\, n.
   1. the quality of being untrue; contrariety to truth; want of
      veracity; also, treachery; faithlessness; disloyalty.
      --chaucer.
      1913 webster

   2. that which is untrue; a false assertion; a falsehood; a
      lie; also, an act of treachery or disloyalty. --shak.
      1913 webster

   syn: lie; falsehood. see lie.
        1913 webster
see also:
lie 

[2] : WordNet (r) 2.0

untruth
     n : a false statement syn: falsehood, falsity, false
         statement ant: truth
see also:
falsehood falsity false statement truth 

[3] : Moby Thesaurus II by Grady Ward, 1.0

68 moby thesaurus words for "untruth":
   aberrancy, aberration, blague, canard, cock-and-bull story,
   defectiveness, delusion, deviancy, distortion, errancy,
   erroneousness, error, exaggeration, fairy tale, fallaciousness,
   fallacy, falsehood, falseness, falsity, farfetched story, farrago,
   fault, faultiness, fib, fiction, fish story, flam, flaw,
   flawedness, flimflam, ghost story, half-truth, hamartia, heresy,
   heterodoxy, illusion, inveracity, legal fiction, lie,
   little white lie, mendacity, misapplication, misconstruction,
   misdoing, misfeasance, misinterpretation, misjudgment,
   misrepresentation, peccancy, perversion, pious fiction,
   prevarication, self-contradiction, sin, sinfulness,
   slight stretching, story, tale, tall story, tall tale, taradiddle,
   trumped-up story, truthlessness, unorthodoxy, untrueness,
   untruthfulness, white lie, yarn

Untruth >> U Words
Untruth, definition of term: Untruth
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