IMPALPABLY

insubstantially, impalpably

(adverb) not substantially; lacking substantial expression or fullness

Source: WordNet® 3.1

Etymology

Adverb

impalpably (comparative more impalpably, superlative most impalpably)

In an impalpable manner.

Source: Wiktionary

Im*pal"pa*bly, adv.

Definition: In an impalpable manner.

IMPALPABLE

Im*pal"pa*ble, a. Etym: [Pref. im- not + palpable: cf. F. impalpable.]

1. Not palpable; that cannot be felt; extremely fine, so that no grit can be perceived by touch. "Impalpable powder." Boyle.

2. Not material; intangible; incorporeal. "Impalpable, void, and bodiless." Holland.

3. Not apprehensible, or readily apprehensible, by the mind; unreal; as, impalpable distinctions.

Source: Webster’s Unabridged Dictionary 1913 Edition