Synonyms|272Antonyms|89|Broader|3Narrower|0Related|401
1
substantiated
1
sure thing(clear, sound, certain, true, definite)
1
surefire(adjective, solid, certain, sure, confident)
1
true as gospel(expression, idiom)
1
trusted
1
trustworthy(adjective, clear, hard, sound, correct)
1
typical(adjective, correct, right, honest, perfect)
1
unambiguous(clear, straightforward, precise, valid, undoubtable)
1
unarguable
1
unconfuted
1
uncontradicted
1
uncontroversial
1
uncontroverted
1
undesigning(adjective, correct, right, honest, perfect)
1
undoubtedly
1
unerroneous
1
unfaked(adjective, correct, right, honest, perfect)
1
unfallacious
1
unfalse
1
unfeigned(adjective, correct, right, honest, solid)
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APASmart Define. (2015). undoubted thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/undoubted/thesaurus/synonyms
ChicagoSmart Define. 2015. "undoubted thesaurus" https://smartdefine.org/undoubted/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, undoubted thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/undoubted/thesaurus/synonyms>.
MLASmart Define. "undoubted thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/undoubted/thesaurus/synonyms>