Synonyms|17Antonyms|0|Broader|1Narrower|0Related|5
5
impenetrability
1
impenetrable
1
impermeability
1
imperviousness
1
tightness
0
arcaneness
0
complexity
0
complicatedness
0
difficulty
0
incomprehensibility
0
intricacy
0
involvement
0
obscurity
0
perplexity
0
reconditeness
0
roughness
0
unfathomability
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APASmart Define. (2013). impenetrableness thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/impenetrableness/thesaurus/synonyms
ChicagoSmart Define. 2013. "impenetrableness thesaurus" https://smartdefine.org/impenetrableness/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, impenetrableness thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/impenetrableness/thesaurus/synonyms>.
MLASmart Define. "impenetrableness thesaurus" 17 June 2013. Web. 20 September 2026. <https://smartdefine.org/impenetrableness/thesaurus/synonyms>