Synonyms|263Antonyms|79|Broader|1Narrower|0Related|671
2
accepted(solid, certain, proper, sure, established)
2
checked(verb, ascertained, experimented)
2
conclusive(sound, reasonable, rational)
2
declared(verb, evinced)
2
demonstrate
2
dependable(adjective, solid, proper, reliable, accepted)
2
effective
2
evidence
2
evidential(adjective, evidential)
2
experimental(adjective, scientific)
2
genuine(adjective, good, sound, right, reasonable)
2
honest(adjective, true)
2
incontestable(set, certain, definite, unquestionable, indisputable)
2
incontrovertible
2
indisputable
2
indubitable(set, certain, definite, sure, unquestionable)
2
investigated(verb, experimented)
2
legal(adjective, sound, reasonable, proper, rational)
2
legitimate(adjective, sound, reasonable, rational)
2
medical(adjective, scientific)
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ChicagoSmart Define. 2015. "proven thesaurus" https://smartdefine.org/proven/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, proven thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/proven/thesaurus/synonyms>.
MLASmart Define. "proven thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/proven/thesaurus/synonyms>