152 entries under adjective topic. ×

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forthright(solve, decided, resolved)
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four-square(stable, stiff, balanced, stead)
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go-getter(ambition, goal, target)
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goal-seeking(ambition, goal, target)
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hard(stable, stiff, balanced, stead)
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hard-shell(stable, sure, balanced, standed)
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hard and fast(stable, sure, balanced, standed)
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hard as the nether millstone(stable, sure, balanced, standed)
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hard set(solve, decided, resolved)
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hardened(stable, sure, balanced, standed)
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hardshell(stable, sure, balanced, standed)
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immovable(stable, sure, balanced, standed)
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imperturbable(stable, sure, balanced, standed)
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inconvertible(stable, stiff, balanced, stead)
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inexorable(stable, sure, balanced, standed)
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inflexible(stable, sure, balanced, standed)
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invariable(stable, stiff, balanced, stead)
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iron-bound(stable, sure, balanced, standed)
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iron-handed(stable, sure, balanced, standed)
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iron bound(stable, sure, balanced, standed)
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APASmart Define. (2013). vacillant thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/vacillant/thesaurus/antonyms
ChicagoSmart Define. 2013. "vacillant thesaurus" https://smartdefine.org/vacillant/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2013, vacillant thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/vacillant/thesaurus/antonyms>.
MLASmart Define. "vacillant thesaurus" 28 June 2013. Web. 27 September 2026. <https://smartdefine.org/vacillant/thesaurus/antonyms>