The Collaborative International Dictionary of English v.0.48:

Veracious \Ve*ra"cious\, a. [L. verax, -acis, fr. verus true.
   See Very.]
   1. Observant of truth; habitually speaking truth; truthful;
      as, veracious historian.
      [1913 Webster]

            The Spirit is most perfectly and absolutely
            veracious.                            --Barrow.
      [1913 Webster]

   2. Characterized by truth; true; not false; as, a veracious
      account or narrative.
      [1913 Webster]

            The young, ardent soul that enters on this world
            with heroic purpose, with veracious insight, will
            find it a mad one.                    --Carlyle.
      [1913 Webster]

WordNet (r) 3.0 (2006):

veracious
    adj 1: habitually speaking the truth; "a veracious witness"
    2: precisely accurate; "a veracious account" [syn: veracious,
       right]

Moby Thesaurus II by Grady Ward, 1.0:

54 Moby Thesaurus words for "veracious":
   actual, ascertained, attested, authenticated, categorically true,
   certain, certified, confirmed, corroborated, demonstrated,
   determined, direct, documentary, effectual, established, factual,
   historical, not in error, objectively true, proved, real,
   substantiated, sure-enough, true, true as gospel, true-meaning,
   true-speaking, true-tongued, truth-bearing, truth-declaring,
   truth-desiring, truth-filled, truth-guarding, truth-loving,
   truth-passing, truth-speaking, truth-telling, truthful, unconfuted,
   undeceitful, undeceptive, undenied, undoubted, unerroneous,
   unfallacious, unfalse, unmistaken, unquestionable, unrefuted,
   valid, validated, veridical, verified, veritable