110 entries under sure topic. ×

6
clear-cut(adjective, clear, plain, certain, definite)
6
fixed(adjective, clear, certain, determined, definite)
6
satisfied(adjective, set, clear, firm, plain)
5
authentic(adjective, honest, certain, true, straight)
5
doubtless(adjective, clear, certain, definite)
5
rank(adjective, clear, complete, simple, total)
5
self-assured(adjective, firm, certain, confident)
5
unhesitating(belief, certain, assured, guaranteed)
4
resolved(adjective, certain, definite, absolute)
4
undoubting(adjective, certain)
3
confirmed(adjective, certain, substantial, real)
3
forcible(adjective, clear, energetic, certain, definite)
3
poised(adjective, certain, confident, self-assured)
3
pronounced(adjective, energetic, certain, definite)
3
self-reliant(adjective, certain, self-assured, assured)
3
set(adjective, clear, certain, fixed)
3
settled(adjective, intense, certain, deliberate, determined)
3
undisputed(adjective, complete, certain, determined, full)
2
beyond doubt(expression, adjective, certain, definite, fixed)
2
bold(adjective, certain, confident, self-assured)
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APASmart Define. (2016). positive thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/positive/thesaurus/synonyms
ChicagoSmart Define. 2016. "positive thesaurus" https://smartdefine.org/positive/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, positive thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/positive/thesaurus/synonyms>.
MLASmart Define. "positive thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/positive/thesaurus/synonyms>