Breadcrumb Home > Thesaurus > I Synonyms of impenetrability Find synonyms for: Noun 1. impenetrability, imperviousness, quality usage: the quality of being impenetrable (by people or light or missiles etc.) 2. impenetrability, impenetrableness, incomprehensibility usage: incomprehensibility by virtue of being too dense to understand WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of impenetrability (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: hagiography Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language