different between impregnable vs impregnability

English

Pronunciation

• IPA^(key): /?m?p???n?b?l/

Etymology 1

From Middle French imprenable, im- (“not”), + prendre (“to take”) +-able (“able to be the object of an action”). Intrusive g added 16c on model of deign, reign.

Adjective

impregnable (comparative more impregnable, superlative most impregnable)

1. (of a fortress, wall, etc., also used figuratively) Too strong to be penetrated.

   • The man's affection remains wholly unconcerned and impregnable.

Derived terms

• impregnability
• impregnableness
• impregnably

Translations

Etymology 2

From impregnate +? -able, ultimately from Latin impraegnatus (“made pregnant”).

Adjective

impregnable (comparative more impregnable, superlative most impregnable)

1. Capable of being impregnated.

Translations

References

• Webster's Third New International Dictionary (1966).

English

Noun

impregnability (uncountable)

1. The quality or state of being impregnable; invincibility.

References

• impregnability in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• impregnability in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.