The Collaborative International Dictionary of English v.0.48:

Unverified \Unverified\
   See verified.

WordNet (r) 3.0 (2006):

unverified
    adj 1: lacking proof or substantiation

Moby Thesaurus II by Grady Ward, 1.0:

36 Moby Thesaurus words for "unverified":
   apocryphal, groundless, inconclusive, indecisive, nonofficial,
   not following, not proved, unascertained, unattested, unauthentic,
   unauthenticated, unauthoritative, uncertified, unchecked,
   unconfirmed, uncorroborated, undemonstrated, undetermined,
   unestablished, unfixed, unfounded, unofficial, unproved, unproven,
   unsettled, unshown, unsubstantiated, unsupported,
   unsupported by evidence, unsustained, untested, untried,
   unvalidated, unwarranted, without basis, without grounds