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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impregnable¹

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]

impregnability , impregnableness n

impregnably  adv

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impregnable², impregnatable [ˌɪmprɛgˈneɪtəb^əl]

adj

able to be impregnated; fertile

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 The old fort with its thick, high walls was virtually impregnable.
open, exposed, vulnerable, insecure, destructible, shakable, pregnable

Translations

impregnable [ɪmˈpregnəbl] ADJ [castle] → inexpugnable (lit, fig) [position] → invulnerable

impregnable [ɪmˈprɛgnəb^əl] adj

[fortress] → imprenable

(fig) [position, person] → inattaquable
impregnable to attack → inattaquable

impregnable

adj (Mil) fortress, defences → uneinnehmbar; (fig) position → unerschütterlich; argument → unwiderlegbar, unumstößlich

impregnable [ɪmˈprɛgnəbl] adj (fortress, defences) → inespugnabile (fig) (person, group) → inattaccabile

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impregnable [ɪmˈprɛgnəbl] adj (fortress, defences) → inespugnabile (fig) (person, group) → inattaccabile