IMPERVIOUSLY
Etymology
Adverb
imperviously (comparative more imperviously, superlative most imperviously)
In an impervious manner; impenetrably; impermeably.
Source: Wiktionary
IMPERVIOUS
Im*per"vi*ous, a. Etym: [L. impervius; pref. im- not + per through +
via way. See Voyage.]
Definition: Not pervious; not admitting of entrance or passage through; as,
a substance impervious to water or air.
This gulf impassable, impervious. Milton.
The minds of these zealots were absolutely impervious. Macaulay.
Syn.
– Impassable; pathless; impenetrable; imperviable; impermeable.
– Im*per"vi*ous*ly, adv.
– Im*per"vi*ous*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition