54 entries under sound topic. ×

2
substantial(reasonable, rational)
2
true(clear, reasonable, rational, absolute)
2
weighty(reasonable, significant, rational, serious)
1
accurate(reasonable, certain, rational, absolute)
1
genuine(clear, reasonable, certain, rational)
1
legitimate(adjective, reasonable, rational)
1
potent(reasonable, rational, forceful, winning)
1
powerful(reasonable, solid, rational, realistic)
1
rational(reasonable, solid, realistic, forceful)
1
trustworthy(clear, reasonable, solid, rational)
1
well-founded(adjective, strong, reasonable, easy)
1
well-grounded(reasonable, rational, absolute, forceful)
0
attested(reasonable, rational)
0
bona fide(expression, reasonable, rational, absolute)
0
confirmed(reasonable, rational)
0
defensible(reasonable, rational)
0
efficacious(reasonable, rational, influential, winning)
0
efficient(reasonable, rational, influential, winning)
0
good(reasonable, rational)
0
in force(expression, reasonable, rational)
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APASmart Define. (2016). conclusive thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/conclusive/thesaurus/synonyms
ChicagoSmart Define. 2016. "conclusive thesaurus" https://smartdefine.org/conclusive/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, conclusive thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/conclusive/thesaurus/synonyms>.
MLASmart Define. "conclusive thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/conclusive/thesaurus/synonyms>