unopposed

from WordNet (r) 3.0 (2006)

unopposed
    adj 1: not having opposition or an opponent; "unopposed military
           forces"; "the candidate was unopposed" [ant: {opposed}]

from The Collaborative International Dictionary of English v.0.48

Unopposed \Unopposed\
   See {opposed}.

from Moby Thesaurus II by Grady Ward, 1.0

20 Moby Thesaurus words for "unopposed":
      agreeing, at one, at one with, carried by acclamation, concordant,
      concurrent, consentaneous, in agreement, like-minded, of a piece,
      of one accord, of one mind, solid, unanimous, unchallenged,
      uncontested, uncontradicted, uncontroverted, with one consent,
      with one voice