
1) Atheistic 2) Atheistical 3) Darwinian 4) Deity discreditor 5) Disbeliever 6) Disbeliever in God 7) Faithless one 8) Follower of no religion 9) French word used in English 10) He eschews pews 11) Isaac asimov, notably 12) Like Soviet ideology 13) No churchgoer 14) Non believer in God 15) Non-believer hates it
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https://www.crosswordclues.com/clue/atheist

1) Atheistical 2) Denier
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https://www.crosswordclues.com/clue/atheist

• (n.) One who disbelieves or denies the existence of a God, or supreme intelligent Being. • (n.) A godless person.
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http://thinkexist.com/dictionary/meaning/atheist/
A'the·ist noun [ Greek ... without god;
'a priv. + ... god: confer French
athéiste .]
1. One who disbelieves or denies the existence of a God, or supreme intelligent Being.
2. A godless person. [ Obsolete]
Syn. -- Infidel; unbeliever. See
Infidel .
Found on
http://www.encyclo.co.uk/webster/A/138

Someone who does not believe there is a God.
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http://www.mmiweb.org.uk/publications/glossary/glossaries/xtianglos.html

[
adj] - related to or characterized by or given to atheism 2. [n] - someone who denies the existence of god
Found on
http://www.webdictionary.co.uk/definition.php?query=atheist

atheist 1. Someone who does not believe in a God or gods or who denies the existence of a God, gods, or deities. 2. A person who denies, or disbelieves, the existence of a supreme being or beings. 3. Etymology: from French athéiste, from ancient Greek ἄθεος (atheos), 'godless, denying the gods'; from ἀ- (a-), 'wit...
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http://www.wordinfo.info/words/index/info/view_unit/2738/
atheistic adjective related to or characterized by or given to atheism; `atheist leanings`
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https://www.encyclo.co.uk/local/20974

Someone who believes that there is no God.
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https://www.encyclo.co.uk/local/21597

a person who denies or disbelieves the existence of a supreme being or beings.
Found on
https://www.infoplease.com/dictionary/atheist
No exact match found.