56 entries under sound topic. ×

21
plausible(adjective, open, reasonable, honest)
20
credible(adjective, close, open, correct)
11
reasonable(adjective, honest, sensible, solid)
10
trustworthy(adjective, close, open, correct)
8
reliable(adjective, close, open, correct)
8
tenable(adjective, reasonable, sensible, rational)
7
rational(adjective, reasonable, honest, sensible)
5
acceptable(adjective, reasonable, rational, realistic)
3
arguable(adjective, reasonable, sensible, rational)
3
sensible(adjective, open, honest, solid)
2
realistic(adjective, close, open, correct)
2
defensible(adjective, reasonable, rational, conceivable)
2
justifiable(adjective, reasonable, sensible, rational)
2
logical(adjective, reasonable, sensible, rational)
2
secure(adjective, open, reasonable, honest)
2
viable(adjective, reasonable, rational, conceivable)
1
advisable(adjective, sensible, rational, intelligent)
1
all there(expression, adjective, sensible, rational)
1
cerebral(adjective, sensible, rational, intelligent)
1
clear-cut(adjective, sensible, rational, intelligent)
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APASmart Define. (2015). believable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/believable/thesaurus/synonyms
ChicagoSmart Define. 2015. "believable thesaurus" https://smartdefine.org/believable/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, believable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/believable/thesaurus/synonyms>.
MLASmart Define. "believable thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/believable/thesaurus/synonyms>