dissenter

dissenter
    n 1: a person who dissents from some established policy [syn:
         {dissenter}, {dissident}, {protester}, {objector},
         {contestant}]
    

Dissenter \Dis*sent"er\, n.
   1. One who dissents; one who differs in opinion, or declares
      his disagreement.
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   2. (Eccl.) One who separates from the service and worship of
      an established church; especially, one who disputes the
      authority or tenets of the Church of England; a
      nonconformist.
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            Dissenters from the establishment of their several
            countries.                            --Burke.
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            Robert Brown is said to have the first formal
            dissenter.                            --Shipley.
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   Note: "The word is commonly applied only to Protestants. The
         Roman Catholics are generally referred to as a distinct
         class." --Brande & C.
         [1913 Webster]
    

38 Moby Thesaurus words for "dissenter":
      Bohemian, Evangelical, Protestant, Reformationist,
      Reformed believer, Zwinglian, apostate, beatnik, demurrer, deviant,
      dissentient, dissident, dropout, flower child, freak, heretic,
      hippie, maverick, misbeliever, misfit, non-Catholic, nonconformist,
      nonjuror, objector, opinionist, opposition voice, original,
      protestant, protester, recusant, schismatic, sectarian, sectary,
      separatist, swinger, ugly duckling, unconformist, yippie