211 entries under definite topic. ×

5
unvarying(adjective, calm, strong, secure, firm)
4
changeless(adjective, clear, firm, solid, certain)
4
confirmed(adjective, solid, certain, limited)
4
evident(adjective, clear, certain, unquestionable)
4
hard(adjective, clear, correct, certain, true)
4
never-failing(adjective, strong, complete, flat, firm)
4
palpable(adjective, plain, obvious, distinctive)
4
sanguine(calm, strong, certain, wise)
4
telling(adjective, energetic, certain, decisive)
4
undeviating(adjective, strong, flat, firm, solid)
4
unshaken(adjective, set, clear, strong, flat)
4
unyielding(adjective, strong, tough, flat, firm)
3
complete(adjective, clear, sound, correct, flat)
3
consummate(adjective, clear, complete, total, certain)
3
downright(adjective, adverb, clear, complete, flat)
3
easy(adjective, calm, quiet, strong, cool)
3
inflexible(adjective, strong, tough, flat, firm)
3
outright(adjective, clear, complete, flat, total)
3
perfect(adjective, clear, complete, correct, total)
3
resolved(verb, adjective, strong, flat, certain)
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APASmart Define. (2016). sure thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/sure/thesaurus/synonyms
ChicagoSmart Define. 2016. "sure thesaurus" https://smartdefine.org/sure/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, sure thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/sure/thesaurus/synonyms>.
MLASmart Define. "sure thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/sure/thesaurus/synonyms>