[1] : The Collaborative International Dictionary of English v.0.48

objector \object"or\, n. l., an accuser.
   one who objects; one who offers objections to a proposition
   or measure.
   1913 webster

[2] : WordNet (r) 2.0

objector
     n : a person who dissents from some established policy syn: dissenter,
          dissident, protester, contestant
see also:
dissenter dissident protester contestant 

[3] : Moby Thesaurus II by Grady Ward, 1.0

36 moby thesaurus words for "objector":
   apostate, bitter-ender, brawler, defendant, demurrer, diehard,
   disputant, dissenter, dissentient, dissident, intransigent,
   irreconcilable, last-ditcher, litigant, naysayer, negativist,
   nonconformist, noncooperator, obstructionist, obstructive,
   opinionist, opposer, opposition voice, oppositionist, plaintiff,
   protestant, protester, quarreler, recusant, resister, schismatic,
   scrapper, sectarian, sectary, separatist, wrangler

Objector >> O Words
Objector, definition of term: Objector
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