Synonyms|240Antonyms|9|Broader|1Narrower|0Related|71
5
reasoning
5
reliability
5
self-assurance
5
steadiness
5
sure(adverb, certain, definite, absolute, obvious)
5
surety
5
transparency
5
truth
5
understanding
5
veracity
5
verity
4
positively(adverb, just, absolutely, completely, exactly)
3
doubtless(adverb, likely, certainly)
3
truly
3
unquestionably(adverb, definitely)
2
clearly(absolutely, really, definitely, unmistakably, decidedly)
2
for a fact(expression, idiom, adverb, just, absolutely)
2
indeed(just, absolutely, severely, completely, exactly)
2
indubitably(adverb, unquestionably)
2
no doubt(adverb, definitely)
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APASmart Define. (2015). for sure thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/for_sure/thesaurus/synonyms
ChicagoSmart Define. 2015. "for sure thesaurus" https://smartdefine.org/for_sure/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, for sure thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/for_sure/thesaurus/synonyms>.
MLASmart Define. "for sure thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/for_sure/thesaurus/synonyms>