21
plausible(adjective, open, sound, reasonable, honest)
20
credible(adjective, close, open, sound, correct)
11
reasonable(adjective, sound, honest, sensible, solid)
10
trustworthy(adjective, close, open, sound, correct)
9
creditable(adjective, reasonable, true, realistic, authentic)
9
likely(adjective, reasonable, realistic, authentic, trustworthy)
9
probable(adjective, reasonable, realistic, happen, authentic)
8
conceivable(adjective, reasonable, easy, realistic, authentic)
8
reliable(adjective, close, open, sound, correct)
8
convincing(adjective, open, honest, sensible, solid)
8
possible(adjective, reasonable, realistic, authentic, trustworthy)
8
tenable(adjective, sound, reasonable, sensible, rational)
7
rational(adjective, sound, reasonable, honest, sensible)
6
presumptive(adjective, realistic, authentic, trustworthy, credible)
6
thinkable(adjective, possible, mortal, convincing, plausible)
5
acceptable(adjective, sound, reasonable, rational, realistic)
5
authentic(adjective, close, open, correct, honest)
4
colorable(adjective, true, realistic, authentic, trustworthy)
4
smooth(reasonable, influential, winning, convincing, credible)
4
unquestionable(adjective, realistic, authentic, trustworthy, credible)
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APASmart Define. (2015). believable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/believable/thesaurus/synonyms
ChicagoSmart Define. 2015. "believable thesaurus" https://smartdefine.org/believable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, believable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/believable/thesaurus/synonyms>.
MLASmart Define. "believable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/believable/thesaurus/synonyms>