• synonyms


[fuh-nat-i-kuh l]
See more synonyms for fanatical on Thesaurus.com
  1. motivated or characterized by an extreme, uncritical enthusiasm or zeal, as in religion or politics.
Show More
Also fanatic.

Origin of fanatical

First recorded in 1540–50; fanatic + -al1
Related formsfa·nat·i·cal·ly, adverbfa·nat·i·cal·ness, nounnon·fa·nat·i·cal, adjectivenon·fa·nat·i·cal·ly, adverbun·fa·nat·i·cal, adjectiveun·fa·nat·i·cal·ly, adverb


See more synonyms for fanatical on Thesaurus.com
enthusiastic, zealous, frenzied, rabid.

Synonym study

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for fanatically

Contemporary Examples

Historical Examples

  • I am not speaking of that; Miss Amy Trefusis might be said to be fanatically conceited.


    Hugh Walpole

  • The Bhutanese are badly armed; but they are fanatically brave.

    The Elephant God

    Gordon Casserly

  • The peasantry are, everywhere, fanatically hostile to foreigners.

  • He belonged to a class of holy men, fanatically pious, rigidly observant of the law, and miserably and abjectly poor.

    The Apostles

    Ernest Renan

  • Said a country vicar to a fanatically scrupulous devotee: "God is not so silly as that."

British Dictionary definitions for fanatically


  1. surpassing what is normal or accepted in enthusiasm for or belief in something; excessively or unusually dedicated or devoted
Show More
Derived Formsfanatically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for fanatically



1540s, from fanatic + -al (1). Related: Fanatically.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper