15
irreligious(adjective, wicked, immoral, deceitful, ungodly)
12
godless(adjective, wicked, immoral, deceitful, god)
12
heathen(adjective, sectarian, not, ungodly, irreverent)
12
unbelieving(adjective, independent, progressive, skeptical, nonconformist)
10
ungodly(adjective, wicked, immoral, deceitful, contrary)
9
irreverent(adjective, wicked, immoral, deceitful, ungodly)
9
profane(adjective, wicked, immoral, crude, deceitful)
8
agnostic(adjective, wicked, immoral, deceitful, skeptical)
8
faithless(adjective, ungodly, irreligious, unbelieving, unspiritual)
8
impious(adjective, independent, progressive, religious, skeptical)
8
pagan(adjective, sectarian, barbarian, ungodly, irreverent)
7
atheistical
7
sacrilegious(adjective, wicked, immoral, deceitful, contrary)
6
disbelieving(adjective, irreligious)
5
blasphemous(adjective, nasty, corrupt, coarse, wicked)
5
dubious(adjective, unbelieving)
5
infidel
4
heretical(adjective, skeptical, unorthodox)
4
materialistic(religion, feature, person)
4
nonreligious(adjective, sectarian, ungodly, unspiritual)
11 years ago|3k views|share |citing 
APASmart Define. (2015). atheistic thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/atheistic/thesaurus/synonyms
ChicagoSmart Define. 2015. "atheistic thesaurus" https://smartdefine.org/atheistic/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, atheistic thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/atheistic/thesaurus/synonyms>.
MLASmart Define. "atheistic thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/atheistic/thesaurus/synonyms>