impregnable

1
[ im-preg-nuh-buhl ]
/ ɪmˈprɛg nə bəl /
SEE SYNONYMS FOR impregnable ON THESAURUS.COM

adjective

strong enough to resist or withstand attack; not to be taken by force, unconquerable: an impregnable fort.
not to be overcome or overthrown: an impregnable argument.

Origin of impregnable

1
1400–50; late Middle English impregnable, imprenable < Middle French, equivalent to im- im-2 + prenable pregnable

SYNONYMS FOR impregnable

1 invulnerable.
1, 2 See invincible.
2 unassailable.
SEE SYNONYMS FOR impregnable ON THESAURUS.COM

OTHER WORDS FROM impregnable

im·preg·na·bil·i·ty, im·preg·na·ble·ness, noun im·preg·na·bly, adverb

Words nearby impregnable

impractical, imprecate, imprecation, imprecise, impredicative, impregnable, impregnate, impresa, impresario, imprescriptible, impress

Words related to impregnability

freedom, security, sanctuary, immunity, shelter, cover, defense, refuge, asylum, assurance, invulnerability, safeness, inviolability

Example sentences from the Web for impregnability

British Dictionary definitions for impregnability (1 of 2)

impregnable 1
/ (ɪmˈprɛɡnəbəl) /

adjective

unable to be broken into or taken by force an impregnable castle
unable to be shaken or overcome impregnable self-confidence
incapable of being refuted an impregnable argument

Derived forms of impregnable

impregnability or impregnableness, noun impregnably, adverb

Word Origin for impregnable

C15 imprenable, from Old French, from im- (not) + prenable able to be taken, from prendre to take

British Dictionary definitions for impregnability (2 of 2)

impregnable 2

impregnatable (ˌɪmprɛɡˈneɪtəbəl)

/ (ɪmˈprɛɡnəbəl) /

adjective

able to be impregnated; fertile