211 entries under definite topic. ×

9
satisfied(verb, adjective, belief, certain)
9
self-confident(adjective, strong, firm, certain)
9
sound(adjective, calm, clear, strong, secure)
9
unambiguous(adjective, clear, sound, firm, plain)
8
bound(adjective, set, strong, tough, flat)
8
clear-cut(adjective, clear, plain, solid, certain)
8
conclusive(adjective, clear, strong, certain)
8
real(adjective, clear, sound, correct, firm)
8
staunch(adjective, calm, good, close, strong)
8
unchangeable(adjective, calm, strong, secure, flat)
7
enduring(adjective, calm, close, quality, strong)
7
for sure(expression, idiom, adverb, certain)
7
irrevocable(adjective, certain, decisive, necessary)
7
precise(adjective, close, clear, correct, plain)
6
abiding(adjective, calm, strong, complete, secure)
6
constant(adjective, calm, good, close, strong)
6
convincing(adjective, pure, certain, original)
6
exact(adjective, close, clear, strong, correct)
6
flat(adjective, strong, certain, absolutely)
6
genuine(adjective, close, clear, sound, correct)
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APASmart Define. (2016). sure thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sure/thesaurus/synonyms
ChicagoSmart Define. 2016. "sure thesaurus" https://smartdefine.org/sure/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, sure thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sure/thesaurus/synonyms>.
MLASmart Define. "sure thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/sure/thesaurus/synonyms>