Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Disbelief in or denial of the existence of God or gods.
  • n. The doctrine that there is no God or gods.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Belief that no deities exist (sometimes including rejection of other religious beliefs).
  • n. Rejection of belief that any deities exist (with or without a belief that no deities exist).
  • n. Absence of belief that any deities exist (including absence of the concept of deities).
  • n. Absence of belief in a particular deity, pantheon, or religious doctrine (notwithstanding belief in other deities).

from the GNU version of the Collaborative International Dictionary of English

  • n. The disbelief or denial of the existence of a God, or supreme intelligent Being.
  • n. Godlessness.

from The Century Dictionary and Cyclopedia

  • n. The doctrine that there is no God; denial of the existence of God.
  • n. The denial of theism, that is, of the doctrine that the great first cause is a supreme, intelligent, righteous person.
  • n. A practical indifference to and disregard of God; godlessness.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the doctrine or belief that there is no God
  • n. a lack of belief in the existence of God or gods

Etymologies

French athéisme, from athée, atheist, from Greek atheos, godless : a-, without; see a-1 + theos, god; see dhēs- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
16th century French athéisme, from athée ("atheist"), a loan from Ancient Greek ἄθεος (átheos, "godless"), from ἀ- (a-, "without") + θεός (theos, "deity, god"). First English attestation dates to 1587 (OED). (Wiktionary)

Examples

Comments

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  • Contemplating atheism is 6.6 times more likely than brewing your own wine to lead to fractures.

    January 24, 2013

  • Notice, Shockofgod...the definition is not "madness."

    April 7, 2010

  • Atheism is a non-prophet organization.

    October 21, 2008