- Definitions|2
- Thesaurus|555
- Abbreviations|0
| unfalse | |
| unmistaken | |
| unquestionable | |
| unrefuted | |
| veracious | |
| alleged(adjective, supported) | |
| autographed(verb, signed) | |
| convincing(original, genuine, reliable, trustworthy, valid) | |
| cosigned(verb, signed) | |
| credentialed | |
| credible(original, genuine, valid) | |
| creditable(original, genuine, valid) | |
| dependable(original, genuine, reliable, trustworthy, valid) | |
| evidenced | |
| faithful(original, genuine, reliable, trustworthy, valid) | |
| guaranteed | |
| hallmarked | |
| hard stone(expression, idiom) | |
| legitimated | |
| officially documented(expression, idiom) |
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| APA | Smart Define. (2015). authenticated thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/authenticated/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "authenticated thesaurus" https://smartdefine.org/authenticated/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, authenticated thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/authenticated/thesaurus/synonyms>. |
| MLA | Smart Define. "authenticated thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/authenticated/thesaurus/synonyms> |