IMPREGNABLY
impregnably
(adverb) in an impregnable manner; “the sight of that bland, impregnably righteous face has been enough to make their blood run cold”
Source: WordNet® 3.1
Etymology
Adverb
impregnably (comparative more impregnably, superlative most impregnably)
In an impregnable manner; so as to defy attack.
Source: Wiktionary
IMPREGNABLE
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