Synonyms|359Antonyms|67|Broader|1Narrower|0Related|355

92 entries under sound topic. ×

4
stout(adjective, calm, strong, secure)
4
trustworthy(good, right, reasonable, rational)
3
authentic(good, right, reasonable, rational)
3
authoritative(good, right, reasonable, rational)
3
confirmed(good, right, reasonable, rational)
3
convincing(reasonable, rational)
3
enduring(adjective, calm, strong, secure)
3
genuine(good, right, reasonable, rational)
3
justifiable(adjective, reasonable, rational, valid)
3
lawful(adjective, good, right, reasonable)
3
legal(good, right, reasonable, rational)
3
potent(good, strong, right, reasonable)
3
powerful(adjective, good, strong, great)
3
proven(adjective, reasonable, rational, logical)
3
staunch(adjective, calm, strong, secure)
3
unyielding(adjective, strong, tough, solid)
2
able(adjective, strong, tough, easy)
2
accurate(correct, reasonable, proper, rational)
2
binding(reasonable, rational)
2
bona fide(expression, good, right, reasonable)
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ChicagoSmart Define. 2016. "well-founded thesaurus" https://smartdefine.org/well-founded/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, well-founded thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/well-founded/thesaurus/synonyms>.
MLASmart Define. "well-founded thesaurus" 29 March 2016. Web. 30 September 2026. <https://smartdefine.org/well-founded/thesaurus/synonyms>