35 entries under right topic. ×

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efficacious(good, sound, reasonable, rational)
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efficient(good, sound, reasonable, rational)
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in force(expression, good, sound, reasonable)
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kosher(good, sound, reasonable, rational)
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legit(good, sound, reasonable, rational)
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official(good, sound, reasonable, rational)
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original(good, sound, reasonable, rational)
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potent(good, sound, reasonable, rational)
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powerful(good, sound, reasonable, rational)
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pure(good, sound, reasonable, rational)
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stringent(good, sound, reasonable, rational)
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tested(good, sound, reasonable, rational)
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unadulterated(good, sound, reasonable, rational)
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unanswerable(good, sound, reasonable, rational)
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uncorrupted(good, sound, reasonable, rational)
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APASmart Define. (2016). well-grounded thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/well-grounded/thesaurus/synonyms
ChicagoSmart Define. 2016. "well-grounded thesaurus" https://smartdefine.org/well-grounded/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, well-grounded thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/well-grounded/thesaurus/synonyms>.
MLASmart Define. "well-grounded thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/well-grounded/thesaurus/synonyms>