Impenetrability Thesaurus / Synonyms

- Definitions|2
- Thesaurus|347
- Abbreviations|0

Synonyms|116 Antonyms|53|Broader|4 Narrower|1 Related|173

2 entries under expression topic. ×

1	tensile strength(noun, protection, security, rigidity)
0	air of mystery

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APA	Smart Define. (2015). impenetrability thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/impenetrability/thesaurus/synonyms
Chicago	Smart Define. 2015. "impenetrability thesaurus" https://smartdefine.org/impenetrability/thesaurus/synonyms (accessed September 21, 2026).
Harvard	Smart Define 2015, impenetrability thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/impenetrability/thesaurus/synonyms>.
MLA	Smart Define. "impenetrability thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/impenetrability/thesaurus/synonyms>

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bulk crowding cruelty denseness density depthexpressionhardness impassability impermeability incomprehensibility mass noun protection rigidity security stiffness thickness tightness waterproofness