1
cinched(adjective, solid, certain, sure, confident)
1
clinched(adjective, solid, certain, sure, confident)
1
correct(adjective, sound, right, plain, exact)
1
corroborated
1
credible
1
credited
1
demonstrated
1
dependable(adjective, correct, right, flat, honest)
1
determined
1
direct(adjective, correct, right, honest, exact)
1
documentary
1
effectual
1
ensured(adjective, solid, certain, sure, confident)
1
exact(adjective, correct, right, proper, true)
1
fitting(adjective, correct, right, honest, perfect)
1
gentry
1
guaranteed(adjective, clear, hard, sound, firm)
1
historical
1
honest(adjective, correct, right, exact, physical)
1
in the bag(expression, adjective, idiom, clear, firm)
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APASmart Define. (2015). undoubted thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/undoubted/thesaurus/synonyms
ChicagoSmart Define. 2015. "undoubted thesaurus" https://smartdefine.org/undoubted/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, undoubted thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/undoubted/thesaurus/synonyms>.
MLASmart Define. "undoubted thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/undoubted/thesaurus/synonyms>