87 entries under adjective topic. ×

2
indisputable
2
legal(sound, reasonable, proper, rational)
2
legitimate(sound, reasonable, rational)
2
medical
2
reliable(good, sensible, solid, fair)
2
solid(sound, reasonable, proper, rational)
2
sound(good, reasonable, sensible, certain)
2
substantial(sound, reasonable, rational)
2
tried and true(expression, idiom, workable, proved)
2
trustworthy(good, sound, right, reasonable)
2
veracious
1
accurate(good, set, sound, reasonable)
1
axiomatic
1
counter-evidential
1
empirical
1
examined(test, expert, reliable)
1
fair(good, sensible, proper, reliable)
1
faithful(good, sensible, solid, fair)
1
go-to(test, expert, reliable)
1
gospel
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APASmart Define. (2015). proven thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/proven/thesaurus/synonyms
ChicagoSmart Define. 2015. "proven thesaurus" https://smartdefine.org/proven/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, proven thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/proven/thesaurus/synonyms>.
MLASmart Define. "proven thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/proven/thesaurus/synonyms>