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Definition of fanatic:

  1. A person affected by excessive enthusiasm, particularly on religious subjects; one who indulges wild and extravagant notions of religion.
  2. Pertaining to, or indicating, fanaticism; extravagant in opinions; ultra; unreasonable; excessively enthusiastic, especially on religious subjects; as, fanatic zeal; fanatic notions.


devotee, religion, daemon, sectary, ultra, nut, edge, rabid, devil, politics, enthusiast, extremist, revolutionary, revolutionist, freak, bug, radical, fiend, far-out, extreme, concern, daimon, maniac, demon, ogre, monster, fan, belief, buff, passionate, overzealous, love, fanatical, votary.

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