15
disloyal(adjective, cool, weak, false, loyal)
11
unfaithful(adjective, cool, weak, false, disloyal)
8
hypocritical
8
sinful
8
slut
8
unreliable(adjective, clear, strong, cool, weak)
7
false(adjective, open, cool, weak, sound)
7
inaccurate(adjective, cool, weak, false, unfaithful)
7
treacherous(adjective, cool, weak, false, unfaithful)
7
shameful
6
untrue(adjective, cool, weak, sound, false)
6
bad to the bone
6
inexact(adjective, cool, weak, false, unfaithful)
6
uncertain(adjective, cool, weak, false, unfaithful)
5
faithless(adjective, cool, weak, false, disloyal)
5
inconstant(adjective, cool, weak, false, unfaithful)
5
dishonest(adjective, good, open, cool, weak)
5
fickle(adjective, cold, hot, steady, vacillating)
5
untrustworthy(adjective, open, cool, weak, honest)
4
apostate(noun, traitor, backslider)
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APASmart Define. (2016). faithful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/faithful/thesaurus/antonyms
ChicagoSmart Define. 2016. "faithful thesaurus" https://smartdefine.org/faithful/thesaurus/antonyms (accessed September 29, 2026).
HarvardSmart Define 2016, faithful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/faithful/thesaurus/antonyms>.
MLASmart Define. "faithful thesaurus" 4 March 2016. Web. 29 September 2026. <https://smartdefine.org/faithful/thesaurus/antonyms>