172 entries under tough topic. ×

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flexible(adjective, strong, hard, elastic)
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impervious(sturdy, unaffected, resilient, hard-wearing)
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in good condition(adjective, strong)
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irrepressible(adjective, strong, hard, flexible)
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persuasive(adjective, strong, energetic, powerful)
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plastic(adjective, strong, hard, flexible)
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pliable(adjective, strong, hard, flexible)
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rubbery(adjective, strong, hard, flexible)
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springy(adjective, strong, hard, flexible)
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supple(adjective, strong, hard, flexible)
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take over(expression, intense, healthy)
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takeover(intense, healthy)
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APASmart Define. (2016). hardy thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/hardy/thesaurus/synonyms
ChicagoSmart Define. 2016. "hardy thesaurus" https://smartdefine.org/hardy/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, hardy thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/hardy/thesaurus/synonyms>.
MLASmart Define. "hardy thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/hardy/thesaurus/synonyms>