Synonyms|39Antonyms|4|Broader|0Narrower|0Related|40
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impenetrable(unaffected, unyielding, unbending, resistant, unreceptive)
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inaccessible(unaffected, unyielding, unbending, resistant, unreceptive)
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invulnerable(unaffected, unyielding, unbending, resistant, unreceptive)
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obdurate(unyielding, unbending, unreceptive)
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rigid(unyielding, unbending, unreceptive)
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rot-resistant
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sealed(unaffected, unyielding, unbending, resistant, unreceptive)
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tight(unaffected, unyielding, unbending, resistant, unreceptive)
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unaffected(unyielding, unbending, resistant, unreceptive)
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unapproachable(unaffected, unyielding, unbending, resistant, unreceptive)
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unbending(unyielding, unreceptive)
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unfeeling(unyielding, unbending, unreceptive)
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unmovable(unyielding, unbending, unreceptive)
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unmoved(unaffected, unyielding, unbending, resistant, unreceptive)
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unpierceable(unaffected, unyielding, unbending, resistant, unreceptive)
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unreceptive(unaffected, unyielding, unbending, resistant)
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unwavering(unyielding, unbending, unreceptive)
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unyielding(unbending, unreceptive)
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watertight(unaffected, unyielding, unbending, resistant, unreceptive)
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APASmart Define. (2013). imperviable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/imperviable/thesaurus/synonyms
ChicagoSmart Define. 2013. "imperviable thesaurus" https://smartdefine.org/imperviable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2013, imperviable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/imperviable/thesaurus/synonyms>.
MLASmart Define. "imperviable thesaurus" 28 June 2013. Web. 22 September 2026. <https://smartdefine.org/imperviable/thesaurus/synonyms>