Breadcrumb Home > Thesaurus > I Synonyms of inexpugnable Find synonyms for: Adjective 1. impregnable, inexpugnable, unconquerable (vs. conquerable) usage: incapable of being overcome, challenged or refuted; "an impregnable argument"; "impregnable self-confidence" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of inexpugnable (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: demotic Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language