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[in-ik-spuhg-nuh-buh l] /ˌɪn ɪkˈspʌg nə bəl/
incapable of being taken by force; impregnable; unconquerable.
Origin of inexpugnable
late Middle English
1375-1425; late Middle English < Latin inexpugnābilis, equivalent to in- in-3 + expugnābilis (expugnā(re) to take by storm (ex- ex-1 + pugnāre to fight) + -bilis -ble)
Related forms
inexpugnability, inexpugnableness, noun
inexpugnably, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for inexpugnable
Historical Examples
  • Hence the conservative, inexpugnable character of Magic and its easy alliance with Mysticism.

  • Here is the inexpugnable element of truth in the intuitional theory.

    Ethics John Dewey and James Hayden Tufts
  • Pleasure somewhere, at some time, to some being or beings, is an inexpugnable element of the conception.

    The Data of Ethics Herbert Spencer
  • She should have made for herself a shelter of inexpugnable peace out of that honest affection.

    Lord Jim Joseph Conrad
  • God's judgments show that even in such extremity He is an inexpugnable defence, like some hill fortress, inaccessible to any foe.

  • This is the practical side of art: its inexpugnable fortress for the true practitioner.

    Across the Plains Robert Louis Stevenson
  • Nicky knew what he had been sent for, and to all his aunt's assaults and manoeuvres he presented an inexpugnable front.

    The Tree of Heaven May Sinclair
  • I felt the inexpugnable strength of common sense being insidiously menaced by this gruesome, by this insane, delusion.

    The Shadow-Line Joseph Conrad
  • My one hope of the world, my inexpugnable consolation in looking at the miseries of the world, is that this is altering.

  • These things exist and yet are hidden; they are inexpugnable, beyond reach, beyond approach.

    Toilers of the Sea Victor Hugo
British Dictionary definitions for inexpugnable


a rare word for impregnable1
Derived Forms
inexpugnability, inexpugnableness, noun
inexpugnably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for inexpugnable

late 15c., from Latin inexpugnabilis "not to be taken by assault," from in- "not" (see in- (1) + expuglabilis, from expugnare (see expugn).

Online Etymology Dictionary, © 2010 Douglas Harper
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