3
paranoid
3
atheist
2
doubtful(adjective, believing)
1
cynical(adjective, person, doubtful, hopeful, good feelings)
0
disbelieving(adjective, uncertain, trusting)
0
distrustful(adjective, disbelieving)
0
faithless(adjective, faithful, disloyal)
0
pagan(adjective, religious, irreligious)
0
changeful
0
denying
0
despairing
0
discrediting
0
doubting
0
heathen
0
incredulous(adjective, unbelieving)
0
mistrusting
0
mutinous
0
nonbelieving
0
polytheistic
0
questioning
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APASmart Define. (2016). believing thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/believing/thesaurus/antonyms
ChicagoSmart Define. 2016. "believing thesaurus" https://smartdefine.org/believing/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2016, believing thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/believing/thesaurus/antonyms>.
MLASmart Define. "believing thesaurus" 23 March 2016. Web. 21 September 2026. <https://smartdefine.org/believing/thesaurus/antonyms>