Synonyms|90Antonyms|3|Broader|1Narrower|0Related|38

62 entries under certain topic. ×

5
certain(adjective, definite, sure, expected)
5
infallible(adjective, flawless, dependable, unquestionable)
5
sure(adjective, definite, expected, assured)
5
unfailing(adjective, flawless, unquestionable, undisputable)
2
guaranteed(adjective, definite, sure, flawless)
2
secure
2
unerring(adjective, flawless, unquestionable, undisputable)
1
accurate(unquestionable, undisputable)
1
assured(definite, sure, unquestionable, approved)
1
for a fact(definite, sure, unquestionable, assured)
0
abiding(unquestionable, undisputable)
0
bound(unquestionable, undisputable)
0
bound to be(expression, idiom, unquestionable, undisputable)
0
changeless(unquestionable, undisputable)
0
clear(unquestionable, undisputable)
0
conclusive(definite, unquestionable, undisputable)
0
constant(unquestionable, undisputable)
0
convinced(unquestionable, undisputable)
0
convincing(unquestionable, undisputable)
0
decided(unquestionable, undisputable)
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APASmart Define. (2015). sure-fire thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/sure-fire/thesaurus/synonyms
ChicagoSmart Define. 2015. "sure-fire thesaurus" https://smartdefine.org/sure-fire/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, sure-fire thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/sure-fire/thesaurus/synonyms>.
MLASmart Define. "sure-fire thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/sure-fire/thesaurus/synonyms>