120 entries under true topic. ×

14
true(adjective, good, strong, correct, firm)
13
conclusive(adjective, clear, strong, correct, easy)
13
distinct(adjective, clear, correct, firm, plain)
13
express(adjective, clear, complete, correct, total)
13
trustworthy(adjective, good, clear, strong, sound)
12
precise(adjective, clear, correct, honest, plain)
12
unmistakable(adjective, clear, correct, firm, total)
11
explicit(adjective, clear, complete, correct, flat)
10
actual(adjective, clear, correct, honest, total)
10
decisive(adjective, good, clear, strong, firm)
10
plain(adjective, clear, flat, firm, honest)
10
safe(adjective, good, clear, strong, sound)
9
constant(adjective, good, strong, complete, firm)
9
genuine(adjective, clear, correct, honest)
9
inarguable(adjective, certain, ideal, all time)
9
sound(noun, adjective, clear, strong, easy)
9
steady(adjective, good, strong, complete, easy)
9
trusty(adjective, good, strong, honest, solid)
8
definitive(adjective, clear, correct, plain, exact)
8
factual(adjective, correct, honest, pure)
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APASmart Define. (2016). certain thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/certain/thesaurus/synonyms
ChicagoSmart Define. 2016. "certain thesaurus" https://smartdefine.org/certain/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, certain thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/certain/thesaurus/synonyms>.
MLASmart Define. "certain thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/certain/thesaurus/synonyms>