veracity

from WordNet (r) 3.0 (2006)

veracity
    n 1: unwillingness to tell lies [ant: {mendacity}]

from The Collaborative International Dictionary of English v.0.48

Veracity \Ve*rac"i*ty\, n. [Cf. F. v['e]racit['e].]
   The quality or state of being veracious; habitual observance
   of truth; truthfulness; truth; as, a man of veracity.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

34 Moby Thesaurus words for "veracity":
      absolute credibility, accuracy, actuality, correctness,
      credibility, eternal verities, exactness, fact, factualness,
      frankness, good sooth, gospel, historical truth, historicity,
      honesty, reality, sooth, the true, trueness, truism, truth,
      truth-loving, truth-speaking, truth-telling, truthfulness,
      ultimate truth, unerroneousness, unfallaciousness, unfalseness,
      veraciousness, veridicality, verisimilitude, verity, very truth