52 entries under toughness topic. ×

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immovability(strength, solidity)
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imperishability(strength, sturdiness)
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indestructibility(strength, sturdiness)
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lastingness(strength, sturdiness)
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maturity(strength, solidity)
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persistence(strength, sturdiness)
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solidness(strength, solidity)
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steadfastness(strength, solidity)
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stick-to-itiveness(strength, sturdiness)
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substantiality(strength, solidity)
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support(strength, solidity)
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sureness(strength, solidity)
<123>
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APASmart Define. (2016). robustness thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/robustness/thesaurus/synonyms
ChicagoSmart Define. 2016. "robustness thesaurus" https://smartdefine.org/robustness/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, robustness thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/robustness/thesaurus/synonyms>.
MLASmart Define. "robustness thesaurus" 29 February 2016. Web. 28 September 2026. <https://smartdefine.org/robustness/thesaurus/synonyms>