Synonyms|378Antonyms|141|Broader|8Narrower|13Related|597

63 entries under sure topic. ×

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imperturbable(certain, guaranteed)
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in the bag(expression, idiom, certain, guaranteed)
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indubitable(certain, guaranteed)
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insured(certain, guaranteed)
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irrefutable(certain, guaranteed, authoritative, unconditional)
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made certain(expression, certain, guaranteed)
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nailed down(expression, certain, guaranteed)
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on ice(expression, certain, guaranteed)
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puffed up(expression, certain, self-assured, self-confident)
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pumped up(expression, certain, guaranteed)
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racked(certain, self-assured, self-confident, guaranteed)
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rosy(certain, guaranteed)
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satisfied(positive, self-assured, self-confident, poised)
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self-possessed(certain, self-assured, self-confident, guaranteed)
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set(firm, certain, resolute, decisive)
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settled(certain, guaranteed)
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sewed up(expression, certain, guaranteed)
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solid(certain, guaranteed)
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surefire(certain, guaranteed)
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undoubted(certain, guaranteed)
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ChicagoSmart Define. 2015. "assertive thesaurus" https://smartdefine.org/assertive/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, assertive thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/assertive/thesaurus/synonyms>.
MLASmart Define. "assertive thesaurus" 9 December 2015. Web. 22 September 2026. <https://smartdefine.org/assertive/thesaurus/synonyms>