• synonyms


[ey-thee-iz-uh m]
See more synonyms for atheism on Thesaurus.com
  1. the doctrine or belief that there is no God.
  2. disbelief in the existence of a supreme being or beings.
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Origin of atheism

1580–90; < Greek áthe(os) godless + -ism
Related formsan·ti·a·the·ism, adjective, nounpro·a·the·ism, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for atheism

nihilism, infidelity, disbelief, unbelief, impiety, doubt, heresy, skepticism, irreverence, paganism, freethinking, iconoclasm, irreligion

Examples from the Web for atheism

Contemporary Examples of atheism

Historical Examples of atheism

  • Do you object to atheism, and yet regard obedience to God as an invention of the priests?

    Weighed and Wanting

    George MacDonald

  • His father's name was Never be Good, and he had more children than this Atheism.


    James Anthony Froude

  • For at bottom, atheism is either a fad or a trade or a fatuity.

    The Book of Khalid

    Ameen Rihani

  • From the peddling-box, therefore, I turned even as I did from atheism.

    The Book of Khalid

    Ameen Rihani

  • Or, do you mean that I am an atheist simply, and a teacher of atheism?



British Dictionary definitions for atheism


  1. rejection of belief in God or gods
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Word Origin for atheism

C16: from French athéisme, from Greek atheos godless, from a- 1 + theos god
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 atheism


1580s, from French athéisme (16c.), from Greek atheos "without god" (see atheist). A slightly earlier form is represented by atheonism (1530s) which is perhaps from Italian atheo "atheist." Ancient Greek atheotes meant "ungodliness."

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Online Etymology Dictionary, © 2010 Douglas Harper

atheism in Culture



Denial that there is a God. (Compare agnosticism.)

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The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.