7
exact(adjective, close, open, correct, right)
7
proven(adjective, good, sound, right, reasonable)
7
substantial(adjective, good, sound, right, reasonable)
7
tangible(adjective, material, certain, substantial, real)
7
verifiable(adjective, honest, real, reliable, trustworthy)
7
creative(adjective, rational, fantastic, original, resourceful)
7
straight(adjective, good, close, open, correct)
7
truthful(adjective, good, close, open, correct)
6
definite(adjective, correct, solid, exact, certain)
6
undoubted(adjective, correct, right, flat, honest)
6
verified(adjective, accurate)
6
existent(adjective, physical, material, true, actual)
6
positive(adjective, honest, certain, true, straight)
6
rightful(adjective, correct, right, honest, exact)
6
sound(adjective, correct, reasonable, honest, solid)
6
true to life(expression, adjective, idiom, close, correct)
5
explicit(adjective, correct, solid, exact, proper)
5
verbatim(adjective, literal)
5
demonstrated(adjective, evidential)
5
first(adjective, original, previous, initial)
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APASmart Define. (2016). authentic thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/authentic/thesaurus/synonyms
ChicagoSmart Define. 2016. "authentic thesaurus" https://smartdefine.org/authentic/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, authentic thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/authentic/thesaurus/synonyms>.
MLASmart Define. "authentic thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/authentic/thesaurus/synonyms>