552 entries under adjective topic. ×

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brass-bound(determined, obstinate, uncompromising, unshakeable)
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emphatic
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enthusiastic(keen, intense, energetic, passionate)
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heroic(strong, vigorous, noble, bold)
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implacable(hard, firm, terrible, determined)
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industrious(keen, intense, energetic, lively)
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iron(hard, determined, resolution, rigid)
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liege(firm, honest, sensible, solid)
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male(vigorous, noble, courageous, muscular)
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perseverant
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persisting
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pigheaded(tough, determined, usual, regular)
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purposive(intense, deliberate, determined, focused)
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refractory(tough, firm, difficult, obstinate)
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reliable(calm, close, strong, secure)
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sincere(close, set, correct, severe)
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strict(close, strong, hard, tough)
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sure(calm, close, strong, secure)
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unafraid(strong, tough, ready, determined)
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unwearied(strong, firm, energetic, determined)
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APASmart Define. (2015). resolute thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/resolute/thesaurus/synonyms
ChicagoSmart Define. 2015. "resolute thesaurus" https://smartdefine.org/resolute/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, resolute thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/resolute/thesaurus/synonyms>.
MLASmart Define. "resolute thesaurus" 3 August 2015. Web. 25 September 2026. <https://smartdefine.org/resolute/thesaurus/synonyms>