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

47 entries under guaranteed topic. ×

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cool(certain, sure, self-assured, self-confident)
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dependable(certain, sure)
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ensured(certain, sure)
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gung ho(expression, certain, sure)
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gutsy(certain, noble, sure, courageous)
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high(certain, sure, self-assured, self-confident)
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imperturbable(certain, sure)
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in the bag(expression, idiom, certain, sure)
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indubitable(certain, sure)
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insured(certain, sure)
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irrefutable(certain, sure, authoritative, unconditional)
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made certain(expression, certain, sure)
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nailed down(expression, certain, sure)
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on ice(expression, certain, sure)
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pumped up(expression, certain, sure)
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racked(certain, sure, self-assured, self-confident)
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rosy(certain, sure)
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self-possessed(certain, sure, self-assured, self-confident)
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set(firm, certain, resolute, sure, decisive)
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settled(certain, sure)
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APASmart Define. (2015). assertive thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/assertive/thesaurus/synonyms
ChicagoSmart Define. 2015. "assertive thesaurus" https://smartdefine.org/assertive/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, assertive thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/assertive/thesaurus/synonyms>.
MLASmart Define. "assertive thesaurus" 9 December 2015. Web. 23 September 2026. <https://smartdefine.org/assertive/thesaurus/synonyms>