/ Dictionary / Index I inexpugnable: Meaning and Definition of Find definitions for: in•ex•pug•na•ble Pronunciation: (in"ik-spug'nu-bul), [key] — adj. incapable of being taken by force; impregnable; unconquerable. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inexpugnable (Thesaurus) inexpressive inexpungible Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language