Synonyms|82Antonyms|53|Broader|0Narrower|1Related|402
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pathless
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rainproof
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rigid
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rot-resistant
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thick
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tight
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unapproachable
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unattainable
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uncomeatable
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underground
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waterproof
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watertight
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wooden
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APASmart Define. (2015). pervious thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/pervious/thesaurus/antonyms
ChicagoSmart Define. 2015. "pervious thesaurus" https://smartdefine.org/pervious/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, pervious thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/pervious/thesaurus/antonyms>.
MLASmart Define. "pervious thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/pervious/thesaurus/antonyms>