Also found in: Thesaurus.


 (ĭn′ĭk-spŭg′nə-bəl, -spyo͞o′nə-)
1. Impossible to overcome or overthrow by force.
2. Impossible to put aside or drive away: inexpugnable dislike.

[Middle English, from Old French, from Latin inexpugnābilis : in-, not; see in-1 + expugnābilis, capable of being overcome (from expugnāre : ex-, completely; see ex- + pugnāre, to fight; see impugn).]

in′ex·pug·na·bil′i·ty n.
in′ex·pug′na·bly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


a rare word for impregnable1
ˌinexˌpugnaˈbility, ˌinexˈpugnableness n
ˌinexˈpugnably adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌɪn ɪkˈspʌg nə bəl)

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.inexpugnable - incapable of being overcome, challenged or refuted; "an impregnable argument"; "impregnable self-confidence"
unconquerable - not capable of being conquered or vanquished or overcome; "a tribute to his courage...and his unconquerable will"- R.E.Danielson; "faced unconquerable difficulties"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
The sound of his words excited his thoughts, and in the play of darting thoughts he had glimpses now and then of the inexpugnable rock of his convictions, towering in solitary grandeur above the unprofitable waste of errors and passions.
Perhaps her face was rigidly set--but that marmoreal impassiveness, that magnificent stolidity, as of a wonderful statue by some great sculptor working under the curse of the gods; that imposing, unthinking stillness of her features, had till then mirrored for him the tranquil dignity of a soul of which he had thought himself--as a matter of course--the inexpugnable possessor.
Inexpugnable, in his wild and mountainous Scotland, an absolute general, king of an army of eleven thousand old soldiers, whom he had more than once led on to victory; as well informed, nay, even better, of the affairs of London, than Lambert, who held garrison in the city, -- such was the position of Monk, when, at a hundred leagues from London, he declared himself for the parliament.
I felt the inexpugnable strength of common sense being insidiously menaced by this gruesome, by this insane, delusion.
[beaucoup moins que]Ma conviction est que l'Algerie forte et inexpugnable pour laquelle se sont sacrifies les chouhada et tant veneree par ses enfants exige, plus que jamais en cette conjoncture particuliere, une hierarchisation des priorites afin d'eviter des consequences incertaines, quand bien meme leurs premices sont perceptibles[beaucoup plus grand que], a affirme le chef de l'Etat, Abdelkader Bensalah, dans un message adresse a l'occasion de la celebration de la Journee nationale du Moudjahid.
Deuda con mis maestros, entre los cuales destaco especialmente a Gustavo Lagos Matus, quien con gran generosidad me introdujo a la disciplina de las relaciones internacionales y quien me enseno, con su propio ejemplo, que no existe una brecha inexpugnable entre la teoria y la practica.
It was also towards the end of September that 4th Army crashed through the Hindenburg Line, the seemingly inexpugnable bastion of German hopes.
Autre defi qu'il importe aussi de relever, selon le Souverain, est celui qui "consiste a accroitre la confiance en la Justice, erigee en rempart inexpugnable de defense de l'Etat de droit et en levier essentiel du developpement".