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1. Not perceptible to the touch; intangible.
2. Difficult to perceive or grasp by the mind.

im·pal′pa·bil′i·ty n.
im·pal′pa·bly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.impalpability - the quality of being intangible and not perceptible by touch
incorporeality, immateriality - the quality of not being physical; not consisting of matter
palpability, tangibility, tangibleness - the quality of being perceivable by touch
References in classic literature ?
Troubles and other realities took on themselves a meta-physical impalpability, sinking to mere mental phenomena for serene contemplation, and no longer stood as pressing concretions which chafed body and soul.
If a ghost is '[one] who has faded into impalpability through death, [or] through absence' (154), as Joyce's text defines it, then Synge is the ghost who haunts the library scene in Ulysses through absence.
The figure is depicted with the impalpability of a ghost, in vague and confused outlines, as if it were a fantasy materialized in the artist's mind.