The Collaborative International Dictionary of English v.0.48:

Untried \Untried\
   See tried.

WordNet (r) 3.0 (2006):

untried
    adj 1: not tried or tested by experience; "unseasoned artillery
           volunteers"; "still untested in battle"; "an illustrator
           untried in mural painting"; "a young hand at plowing"
           [syn: unseasoned, untested, untried, young]
    2: not yet proved or subjected to testing; "an untested drug";
       "untested theory"; "an untried procedure" [syn: untested,
       untried]

Moby Thesaurus II by Grady Ward, 1.0:

82 Moby Thesaurus words for "untried":
   a novice at, a stranger to, callow, dewy, ever-new, evergreen,
   firsthand, fledgling, fresh, green, green as grass, groundless,
   half-baked, ignorant, immature, inconclusive, indecisive,
   inexperienced, intact, maiden, maidenly, neoteric, nestling, new,
   new to, not following, not proved, original, pristine, raw,
   sempervirent, unaccustomed to, unacquainted with, unascertained,
   unattested, unauthenticated, unbeaten, uncertified, unconfirmed,
   unconversant, unconversant with, uncorroborated, undemonstrated,
   undetermined, undeveloped, unestablished, unexperienced,
   unfamiliar with, unfixed, unfledged, unfounded, unhandled,
   uninitiated in, unmatured, unpracticed, unpracticed in, unproved,
   unproven, unripe, unseasoned, unsettled, unshown, unskilled in,
   unsubstantiated, unsupported, unsupported by evidence, unsustained,
   untested, untouched, untrodden, unused, unused to, unvalidated,
   unverified, unversed, unversed in, vernal, virgin, virginal,
   without basis, without grounds, young