Impenetrability Thesaurus / Synonyms / page 5

0	illegibility
0	impalpability
0	imporosity
0	impracticability
0	impracticableness
0	inapplicability
0	inapplicableness
0	incomprehensibly
0	incompressibility
0	inconceivability
0	indefiniteness
0	inexplicability
0	inexplicableness
0	infeasibility
0	insolvability
0	insusceptibility
0	involvedness
0	involvement
0	mass(noun, bulk, density, thickness, impermeability)
0	massiveness(noun, mass, bulk, density, thickness)

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APA	Smart Define. (2015). impenetrability thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/impenetrability/thesaurus/synonyms
Chicago	Smart Define. 2015. "impenetrability thesaurus" https://smartdefine.org/impenetrability/thesaurus/synonyms (accessed September 23, 2026).
Harvard	Smart Define 2015, impenetrability thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/impenetrability/thesaurus/synonyms>.
MLA	Smart Define. "impenetrability thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/impenetrability/thesaurus/synonyms>

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