6
faithless(adjective, sinful, ungodly, irreligious, unspiritual)
6
impious(adjective, nasty, coarse, crude, ungodly)
5
ethnic(adjective, heterodoxy)
5
barbaric
5
fetishistic(adjective, sectarian)
5
heretical(adjective, irreligious)
5
iconoclastic(adjective, sectarian, ungodly, irreligious, unspiritual)
5
idolater
5
irreverent(adjective, sinful, ungodly, irreligious, blasphemous)
4
freethinker(noun, irreligion)
4
nullifidian(noun, adjective)
4
pantheistic(adjective, sectarian, heterodoxy)
4
savage
4
sceptic(noun, adjective)
4
uncivilised
4
amoral
4
disbelieving(adjective, irreligious)
4
unenlightened
4
ungodly(adjective, sinful, irreverent, irreligious, blasphemous)
3
polytheist(noun, heterodoxy)
10 years ago|8k views|share |citing 
APASmart Define. (2016). heathen thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/heathen/thesaurus/synonyms
ChicagoSmart Define. 2016. "heathen thesaurus" https://smartdefine.org/heathen/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, heathen thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/heathen/thesaurus/synonyms>.
MLASmart Define. "heathen thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/heathen/thesaurus/synonyms>