4
undeniable(adjective, clear, correct, right, perfect)
4
very(adjective, adverb, correct, right, honest)
3
amended
3
authenticated(honest, certain, true, original, straight)
3
axiomatic(adjective, true)
3
credible(adjective, open, direct, correct, right)
3
definite(adjective, clear, correct, solid, perfect)
3
effective
3
fitting(adjective, correct, right, honest, perfect)
3
forthright(adjective, open, honest, straight)
3
hands-on(applied, real-world)
3
ingenuous(adjective, open, honest, straight, veracious)
3
perfect(adjective, clear, correct, right, appropriate)
3
proven(adjective, firm, solid, true, accurate)
3
righteous(adjective, correct, right, honest, exact)
3
undistorted(right, plain, perfect, exact, proper)
3
unimpeachable(true, real, indisputable)
2
actually
2
appropriate(adjective, correct, right, perfect, exact)
2
attested
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APASmart Define. (2016). factual thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/factual/thesaurus/synonyms
ChicagoSmart Define. 2016. "factual thesaurus" https://smartdefine.org/factual/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, factual thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/factual/thesaurus/synonyms>.
MLASmart Define. "factual thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/factual/thesaurus/synonyms>