un·as·sail·a·ble

(ŭn′ə-sā′lə-bəl)

adj.

1. Impossible to dispute or disprove; undeniable: unassailable truths.

2. Not subject to attack or seizure; impregnable: an unassailable fortress.

un′as·sail′a·bil′i·ty, un′as·sail′a·ble·ness n.

un′as·sail′a·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.

unassailable

(ˌʌnəˈseɪləbəl)

adj

1. not able to be attacked

2. undeniable or irrefutable

ˌunasˈsailableness, ˌunasˈsailaˈbility n

ˌunasˈsailably adv

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

un•as•sail•a•ble

(ˌʌn əˈseɪ lə bəl)

adj.

1. not vulnerable to attack or assault, as by military force or argument.

2. not subject to denial or dispute: an unassailable position in world literature.

[1590–1600]

un`as•sail′a•ble•ness, n.

un`as•sail′a•bly, adv.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Adj.	1.	unassailable - immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection" impregnable, unattackable, inviolable, secure, strong invulnerable - immune to attack; impregnable; "gunners raked the beach from invulnerable positions on the cliffs"
	2.	unassailable - impossible to assail untouchable inviolable - incapable of being transgressed or dishonored; "the person of the king is inviolable"; "an inviolable oath"
	3.	unassailable - without flaws or loopholes; "an ironclad contract"; "a watertight alibi"; "a bulletproof argument" bulletproof, unshakable, watertight incontestable, incontestible - incapable of being contested or disputed

unassailable

adjective

1. undeniable, indisputable, irrefutable, sound, proven, positive, absolute, conclusive, incontrovertible, incontestable His legal position is unassailable.
undeniable uncertain, doubtful, dubious, unfounded, inconclusive, debatable, unproven, unsound

2. invincible, impregnable, invulnerable, secure, well-defended Liverpool football club are still looking unassailable.

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

unassailable

adjective

Established beyond a doubt:

certain, hard, inarguable, incontestable, incontrovertible, indisputable, indubitable, irrefutable, positive, sure, undeniable, undisputable, unquestionable.

Translations

unassailable

[ˌʌnəˈseɪləbl] ADJ [proof] → incontestable; [position, influence] → inatacable; [argument] → irrefutable, irrebatible; [fortress] → inexpugnable
he is quite unassailable on that score → no se le puede atacar por ese lado

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

unassailable

[ˌʌnəˈseɪləb^əl] adj [lead] → décisif/ive; [position] → inattaquable

Collins English/French Electronic Resource. © HarperCollins Publishers 2005

unassailable

adj → unangreifbar; fortress → uneinnehmbar, unbezwingbar; position, reputation, record, majority → unantastbar, unanfechtbar; conviction → unerschütterlich; argument → unwiderlegbar, unanfechtbar, zwingend

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

unassailable

[ˌʌnəˈseɪləbl] adj (fortress) → imprendibile; (position, reputation) → inattaccabile

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

Mentioned in

References in classic literature

The art of war teaches us to rely not on the likelihood of the enemy's not coming, but on our own readiness to receive him; not on the chance of his not attacking, but rather on the fact that we have made our position unassailable.

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I know that her fortune is gone--I know that the last chance of restoring her to her place in the world lies at the mercy of her worst enemy, of a man who is now absolutely unassailable, and who may remain unassailable to the end.

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From the moment that Anna loved Vronsky, he had regarded his own right over her as the one thing unassailable. Her husband was simply a superfluous and tiresome person.

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It was fenced away from the public view, but there it was, a gigantic and unassailable fact -- and to be heard from, yet, if I lived and had luck.

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I don't want to renew our old disagreement about your father's conduct to those two sisters, or to deny that his brother Andrew may have behaved badly to him; I am willing to admit that the high moral position he took in the matter is quite unassailable by such a miserable sinner as I am; and I will not dispute that my own spendthrift habits incapacitate me from offering any opinion on the conduct of other people's pecuniary affairs.

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They have their House of Lords, they own the land, and will own it for many years to come, their position is unassailable. It is the worst country in Europe for us to work in.

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Lizzie's father, composing himself into the easy attitude of one who had asserted the high moralities and taken an unassailable position, slowly lighted a pipe, and smoked, and took a survey of what he had in tow.

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Every red Martian is taught during earliest childhood the principles of the manufacture of atmosphere, but only two at one time ever hold the secret of ingress to the great building, which, built as it is with walls a hundred and fifty feet thick, is absolutely unassailable, even the roof being guarded from assault by air craft by a glass covering five feet thick.

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During the rollings and squirmings of the next few minutes, Tarzan's hold was loosened a dozen times until finally an accidental circumstance of those swift and everchanging evolutions gave him a new hold with his right hand, which he realized was absolutely unassailable.

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Satan, having satisfied himself that the tree-perches were unassailable, was charging straight for the big Tahitian.

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He had received his name from the suavity of his countenance, the inveterate politeness of his language, and the unassailable composure of his manner.

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How, at such an apparently unassailable surface, they contrive to gouge out such symmetrical mouthfuls, remains a part of the universal problem of all things.

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