Synonyms|90Antonyms|3|Broader|1Narrower|0Related|38
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probable(expected, foreseeable)
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propitious
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real(certain, unquestionable, undisputable)
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safe
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satisfied(certain, unquestionable, undisputable)
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set(certain, unquestionable, undisputable)
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steadfast(certain, unquestionable, undisputable)
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steady(certain, unquestionable, undisputable)
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surefire(certain, unquestionable, undisputable)
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telling(certain, unquestionable, undisputable)
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tried and true
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trustworthy
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unavoidable(certain, unquestionable, undisputable)
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unchangeable(certain, unquestionable, undisputable)
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unchanging(certain, unquestionable, undisputable)
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uncompromising(certain, unquestionable, undisputable)
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undeniable(certain, definite, unquestionable, undisputable)
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undisputable(certain, unquestionable)
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unequivocal(certain, definite, unquestionable, undisputable)
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unfaltering(certain, unquestionable, undisputable)
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APASmart Define. (2015). sure-fire thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sure-fire/thesaurus/synonyms
ChicagoSmart Define. 2015. "sure-fire thesaurus" https://smartdefine.org/sure-fire/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, sure-fire thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sure-fire/thesaurus/synonyms>.
MLASmart Define. "sure-fire thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/sure-fire/thesaurus/synonyms>