45 entries under noun topic. ×

22
infidel(adjective, religion, person, view)
22
disbeliever(religion, person, view, think)
18
pagan(adjective, religion, feature, person)
17
heathen(adjective, religion, person, view)
16
unbeliever(adjective, religion, feature, person)
15
freethinker(religion, person, view, think)
13
agnostic(adjective, religion, person, view)
13
nullifidian(adjective, person, think, thinking)
12
sceptic(adjective, religion, person, view)
11
irreligionist(religion, person, thinking, disbelief)
11
skeptic(religion, person, disbelief, irreligion)
9
nonbeliever(adjective, religion, feature, person)
8
doubter(adjective, religion, person, view)
8
free thinker(expression, religion, person, thinking)
6
freethinking(adjective, person, thinking, unbeliever)
6
nothingarian(person, think, thinking, skeptic)
6
non-believer(adjective, feature, person, view)
5
rationalist(adjective, thinking, disbelieve, irreligion)
5
antitheist(person, thinking, skeptic)
5
gentile(adjective, person, which, thinking)
<123>
10 years ago|5.9k views|share |citing 
APASmart Define. (2016). atheist thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/atheist/thesaurus/synonyms
ChicagoSmart Define. 2016. "atheist thesaurus" https://smartdefine.org/atheist/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, atheist thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/atheist/thesaurus/synonyms>.
MLASmart Define. "atheist thesaurus" 18 February 2016. Web. 28 September 2026. <https://smartdefine.org/atheist/thesaurus/synonyms>