1
unfalse
1
unmistaken
1
unquestionable
1
unrefuted
1
veracious
0
alleged(adjective, supported)
0
autographed(verb, signed)
0
convincing(original, genuine, reliable, trustworthy, valid)
0
cosigned(verb, signed)
0
credentialed
0
credible(original, genuine, valid)
0
creditable(original, genuine, valid)
0
dependable(original, genuine, reliable, trustworthy, valid)
0
evidenced
0
faithful(original, genuine, reliable, trustworthy, valid)
0
guaranteed
0
hallmarked
0
hard stone(expression, idiom)
0
legitimated
0
officially documented(expression, idiom)
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APASmart Define. (2015). authenticated thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/authenticated/thesaurus/synonyms
ChicagoSmart Define. 2015. "authenticated thesaurus" https://smartdefine.org/authenticated/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, authenticated thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/authenticated/thesaurus/synonyms>.
MLASmart Define. "authenticated thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/authenticated/thesaurus/synonyms>