98 entries under sound topic. ×

46
believable(adjective, close, open, correct)
37
plausible(adjective, open, reasonable, honest)
32
trustworthy(adjective, good, close, correct)
25
reliable(adjective, close, open, correct)
21
reasonable(adjective, sensible, solid, fair)
14
rational(adjective, reasonable, sensible, solid)
14
tenable(adjective, reasonable, sensible, rational)
11
authentic(adjective, good, close, open)
7
good(adjective, right, reasonable, rational)
6
solid(adjective, good, open, right)
5
acceptable(adjective, reasonable, solid, fair)
5
conclusive(adjective, reasonable, solid, rational)
5
sensible(adjective, open, honest, solid)
5
true(adjective, close, open, direct)
5
well-founded(good, right, reasonable, rational)
4
arguable(adjective, reasonable, sensible, rational)
4
cogent(reasonable, solid, rational, realistic)
4
justifiable(adjective, reasonable, sensible, rational)
4
legitimate(good, correct, right, real)
4
logical(adjective, good, right, reasonable)
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APASmart Define. (2015). credible thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/credible/thesaurus/synonyms
ChicagoSmart Define. 2015. "credible thesaurus" https://smartdefine.org/credible/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, credible thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/credible/thesaurus/synonyms>.
MLASmart Define. "credible thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/credible/thesaurus/synonyms>