53 entries under sound topic. ×

2
just(good, right, reasonable, rational)
2
lawful(good, right, reasonable, rational)
2
legal(good, right, reasonable, rational)
2
legitimate(good, right, reasonable, rational)
2
logical(good, right, reasonable, rational)
2
official(good, right, reasonable, rational)
2
rational(reasonable, forceful, persuasive, convincing)
2
reasonable(significant, rational, substantial, large)
2
stringent(adjective, good, strong, hard)
2
well-grounded(good, right, reasonable, rational)
1
genuine(good, right, reasonable, severe)
0
accurate(reasonable, rational)
0
attested(good, right, reasonable, rational)
0
bona fide(expression, good, right, reasonable)
0
confirmed(good, right, reasonable, rational)
0
credible(good, right, reasonable, rational)
0
defensible(reasonable, rational)
0
efficient(good, right, reasonable, violent)
0
in force(expression, good, right, reasonable)
0
justifiable(reasonable, rational)
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APASmart Define. (2015). weighty thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/weighty/thesaurus/synonyms
ChicagoSmart Define. 2015. "weighty thesaurus" https://smartdefine.org/weighty/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, weighty thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/weighty/thesaurus/synonyms>.
MLASmart Define. "weighty thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/weighty/thesaurus/synonyms>