impregnable


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im·preg·na·ble 1

 (ĭm-prĕg′nə-bəl)
adj.
1. Impossible to capture or enter by force: an impregnable fortress.
2. Difficult or impossible to attack, challenge, or refute with success: an impregnable argument.

[Middle English imprenable, from Old French : in-, not (from Latin in-; see in-1) + prenable, pregnauble, pregnable; see pregnable.]

im·preg′na·bly adv.

im·preg·na·ble 2

 (ĭm-prĕg′nə-bəl)
adj.
Capable of being impregnated.

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.

impregnable

(ɪmˈprɛɡnəbəl)
adj
1. unable to be broken into or taken by force: an impregnable castle.
2. unable to be shaken or overcome: impregnable self-confidence.
3. incapable of being refuted: an impregnable argument.
[C15 imprenable, from Old French, from im- (not) + prenable able to be taken, from prendre to take]
imˌpregnaˈbility, imˈpregnableness n
imˈpregnably adv

impregnable

(ɪmˈprɛɡnəbəl) or

impregnatable

adj
able to be impregnated; fertile
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

im•preg•na•ble

(ɪmˈprɛg nə bəl)

adj.
1. strong enough to resist or withstand attack; unconquerable: an impregnable fort.
2. irrefutable; unassailable.
[1400–50; late Middle English impregnable, imprenable < Middle French, =im- im-2 + prenable pregnable]
im•preg`na•bil′i•ty, im•preg′na•ble•ness, n.
im•preg′na•bly, adv.
syn: See invincible.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

impregnable

- Means "incapable of being taken by force" (from French prendre, "seize").
See also related terms for incapable.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.impregnable - immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection"
invulnerable - immune to attack; impregnable; "gunners raked the beach from invulnerable positions on the cliffs"
2.impregnable - capable of conceiving
fertile - capable of reproducing
3.impregnable - 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.

impregnable

Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

impregnable

adjective
Incapable of being conquered, overrun, or subjugated:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations

impregnable

[ɪmˈpregnəbl] ADJ [castle] → inexpugnable (lit, fig) [position] → invulnerable
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

impregnable

[ɪmˈprɛgnəbəl] adj
[fortress] → imprenable
(fig) [position, person] → inattaquable
impregnable to attack → inattaquable
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

impregnable

adj (Mil) fortress, defencesuneinnehmbar; (fig) positionunerschütterlich; argumentunwiderlegbar, unumstößlich
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

impregnable

[ɪmˈprɛgnəbl] adj (fortress, defences) → inespugnabile (fig) (person, group) → inattaccabile
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in classic literature ?
He was not therefore greatly pleased with this cold answer of his nephew; nor could he help launching forth into the praises of Sophia, and expressing some wonder that the heart of a young man could be impregnable to the force of such charms, unless it was guarded by some prior affection.
For I was not prepared to see Father Mapple after gaining the height, slowly turn round, and stooping over the pulpit, deliberately drag up the ladder step by step, till the whole was deposited within, leaving him impregnable in his little Quebec.
Unerringly impelling this dead, impregnable, uninjurable wall, and this most buoyant thing within; there swims behind it all a mass of tremendous life, only to be adequately estimated as piled wood is --by the cord; and all obedient to one volition, as the smallest insect.
'Even the wise and mysterious therns of Barsoom, that ancient cult which for countless ages has been credited with holding the secret of life and death in their impregnable fastnesses upon the hither slopes of the Mountains of Otz, are as ignorant as we.
To those who are disposed to consider, as innocent omissions in the State constitutions, what they regard as unpardonable blemishes in the plan of the convention, nothing can be said; or at most, they can only be asked to assign some substantial reason why the representatives of the people in a single State should be more impregnable to the lust of power, or other sinister motives, than the representatives of the people of the United States?
On this point the defence of the Square seems to me to be impregnable. I wish I could say that his answer to the second (or moral) objection was equally clear and cogent.
But when the victorious Romans brought with them the heavy solid fortifications impregnable to the weapons of the time, its commanding position alone ensured its adequate building and equipment.
There was not a guard in sight without the palace, due, I presume, to the fact that the city and palace walls were considered impregnable, and so I came close and peered within.
Here, at least, was a citadel impregnable by right-hand defections or left-hand extremes.
Impregnable Malta surrenders without a shot; his most reckless schemes are crowned with success.
In the first place, La Rochelle appeared impregnable. Then the cardinal, whatever he said, very well knew that the horror of bloodshed in this encounter, in which Frenchman would combat against Frenchman, was a retrograde movement of sixty years impressed upon his policy; and the cardinal was at that period what we now call a man of progress.
Fallen is the wall on which we relied as an impregnable bulwark both for us and our fleet.