Synonyms|207Antonyms|17|Broader|0Narrower|0Related|180
1
reliable
1
revised(adjective, test, expert, reliable)
1
secure
1
settled
1
shown
1
sincere
1
submitted(verb, affirmed)
1
sure(adjective, test, expert, reliable)
1
sure-enough
1
sustained(verb, affirmed)
1
sworn to
1
tried-and-true(adjective, test, expert, reliable)
1
tried and tested(adjective, test, expert, reliable)
1
true as gospel(expression, idiom)
1
truthful
1
unconfuted
1
undenied
1
undoubted
1
unerroneous
1
unfallacious
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APASmart Define. (2015). attested thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/attested/thesaurus/synonyms
ChicagoSmart Define. 2015. "attested thesaurus" https://smartdefine.org/attested/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, attested thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/attested/thesaurus/synonyms>.
MLASmart Define. "attested thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/attested/thesaurus/synonyms>