87 entries under adjective topic. ×

20
proved(verb, tried, substantiated, tested)
16
confirmed(verb, sound, reasonable, rational)
15
demonstrated(verb, demonstration, evinced, proved)
13
certified(verb, test, expert, reliable)
13
substantiated(verb, firm, solid, truth)
12
tried(verb, test, expert, reliable)
11
tested(verb, test, expert, reliable)
10
validated(verb, reliable, accepted, trustworthy)
9
attested(verb, test, expert, reliable)
9
corroborated(verb, substantiated, evinced, evidential)
8
authentic(good, sound, right, reasonable)
8
true(sound, reasonable, certain, proper)
7
supported(verb, reliable, established, trustworthy)
6
approved(test, expert, reliable)
5
good(sound, reasonable, rational)
4
right(good, sound, reasonable, solid)
4
sure(test, expert, reliable)
3
absolute
3
authoritative(sound, reasonable, solid, proper)
3
certain(set, true, definite, sure)
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APASmart Define. (2015). proven thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/proven/thesaurus/synonyms
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>