Synonyms|215Antonyms|61|Broader|3Narrower|0Related|691

66 entries under hard topic. ×

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impenetrable(solid, rigid)
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impermeable(solid, rigid)
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impervious(tough, solid, rigid, inflexible)
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nonporous(tough, solid, rigid, inflexible)
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sturdy(tough, solid, rigid, inflexible)
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substantial(solid, rigid)
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APASmart Define. (2015). inelastic thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inelastic/thesaurus/synonyms
ChicagoSmart Define. 2015. "inelastic thesaurus" https://smartdefine.org/inelastic/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, inelastic thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inelastic/thesaurus/synonyms>.
MLASmart Define. "inelastic thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/inelastic/thesaurus/synonyms>