IMPREGNABLE

impregnable, inexpugnable

(adjective) incapable of being overcome, challenged or refuted; “an impregnable argument”; “impregnable self-confidence”

conceptive, impregnable

(adjective) capable of conceiving

impregnable, inviolable, secure, strong, unassailable, unattackable

(adjective) immune to attack; incapable of being tampered with; “an impregnable fortress”; “fortifications that made the frontier inviolable”; “a secure telephone connection”

Source: WordNet® 3.1


Etymology 1

Adjective

impregnable (comparative more impregnable, superlative most impregnable)

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

Etymology 2

Adjective

impregnable (comparative more impregnable, superlative most impregnable)

Capable of being impregnated.

Source: Wiktionary


Im*preg"na*ble, a. Etym: [F. imprenable; pref. im- not + prenable pregnable, fr. prendre to take, L. prehendere. See Comprehend, Get to obtain.]

Definition: Not to be stormed, or taken by assault; incapable of being subdued; able to resist attack; unconquerable; as, an impregnable fortress; impregnable virtue. The man's affection remains wholly unconcerned and impregnable. South.

– Im*preg"na*ble*ness, n.

– Im*preg"na*bly, adv.

Im*preg"na*ble, a. Etym: [See Impregnate.] (Biol.)

Definition: Capable of being impregnated, as the egg of an animal, or the ovule of a plant.

Source: Webster’s Unabridged Dictionary 1913 Edition



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