Synonyms|230Antonyms|32|Broader|3Narrower|0Related|172
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negotiable
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open
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pliable
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porose
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rangy
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selectively permeable
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sheer(adjective, thin)
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soft
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sprawling
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squishy
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transparent
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yielding
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APASmart Define. (2015). impermeable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/impermeable/thesaurus/antonyms
ChicagoSmart Define. 2015. "impermeable thesaurus" https://smartdefine.org/impermeable/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, impermeable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/impermeable/thesaurus/antonyms>.
MLASmart Define. "impermeable thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/impermeable/thesaurus/antonyms>