impregnable

im·preg·na·ble ¹  (m-prgn-bl)

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.

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

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im·pregna·bly adv.

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im·preg·na·ble ²  (m-prgn-bl)

adj.

Capable of being impregnated.

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[impregn(ate) + -able.]

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impregnable

Adjective

1. unable to be broken into or taken by force: an impregnable fortress

2. unable to be affected or overcome: a confident, impregnable person [Old French imprenable]

impregnability n

Thesaurus

Adj.	1.	impregnable - immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection" unassailable, unattackable, inviolable, secure, strong invulnerable - immune to attack; impregnable; "gunners raked the beach from invulnerable positions on the cliffs"
	2.	impregnable - capable of conceiving conceptive fertile - capable of reproducing
	3.	impregnable - incapable of being overcome, challenged or refuted; "an impregnable argument"; "impregnable self-confidence" inexpugnable 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"

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impregnable

adjective invulnerable, strong, secure, unbeatable, invincible, impenetrable, unassailable, indestructible, immovable, unshakable, unconquerable << OPPOSITE vulnerable

Translations

impregnable [ɪmˈprɛgnəbl] adj → invulnerable; [castle] → inexpugnable

impregnable [ɪmˈprɛgnəbl] adj [fortress] → imprenable (fig); inattaquable, irréfutable

impregnable [ɪmˈprɛgnəbl] adj → uneinnehmbar (fig); unerschütterlich

impregnable [ɪmˈprɛgnəbl] adj [fortress] → inespugnabile;

(fig) → inoppugnabile; irrefutabile