impenetrableness
im·pe·net·rableness
noun
1.
incomprehensibility by virtue of being too dense to understand
Origin
From impenetrable + -ness.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.