122 entries under sure topic. ×

1
genuine(clear, sound, reasonable, certain, rational)
1
guaranteed(adjective, clear, hard, sound, firm)
1
in the bag(expression, adjective, idiom, clear, firm)
1
insured(adjective, solid, certain, confident)
1
irrefrangible(definite, precise, decisive, final)
1
irrevocable(definite, precise, absolute, decisive)
1
litmus test(expression, definite, precise, decisive)
1
made certain(expression, adjective, solid, certain)
1
nailed down(expression, adjective, solid, certain)
1
on ice(expression, adjective, clear, firm, solid)
1
overconfident(adjective, certain, guaranteed)
1
perfect(clear, certain, absolute, indisputable)
1
precise(definite, decisive, final)
1
pronounced(adjective, solid, certain, confident)
1
racked(adjective, solid, certain, confident)
1
resolving(definite, precise, decisive, final)
1
revealing(definite, precise, decisive, final)
1
sealed(adjective, solid, certain, confident)
1
secure(adjective, sound, firm, solid, certain)
1
settling(definite, precise, decisive, final)
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APASmart Define. (2015). irrefutable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/irrefutable/thesaurus/synonyms
ChicagoSmart Define. 2015. "irrefutable thesaurus" https://smartdefine.org/irrefutable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, irrefutable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/irrefutable/thesaurus/synonyms>.
MLASmart Define. "irrefutable thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/irrefutable/thesaurus/synonyms>