His failure has something to do with that impalpable thing called presence.
From the time.com
The thinner the paint, the more mysterious and impalpable the images are.
From the guardian.co.uk
They ultimately abandoned it, but people kept coming there, drawn by some impalpable attraction.
From the washingtontimes.com
The greatness of this one depends on more impalpable things.
From the guardian.co.uk
Touched with some impalpable and mysterious inspiration, they proved to be the golden brood of 18th century Enlightenment.
From the time.com
If they see their landing gear disappearing into impalpable dust, they can rise, move sideways and try another landing somewhere else.
From the time.com
Whether or not inguinal lymphadenectomy benefits patients with superficial penile carcinoma and clinically impalpable lymph nodes is a controversial issue.
From the nature.com
After setting and populating his scene in the first chapter, the author takes pains to point out that his creations are impalpable figures of fancy.
From the time.com
Consequently, such individuals accept no religion that believes in an impalpable God because the evidence of his existence cannot satisfy all reasonable people.
From the sltrib.com
More examples
Intangible: incapable of being perceived by the senses especially the sense of touch; "the intangible constituent of energy"- James Jeans
Imperceptible to the senses or the mind; "an impalpable cloud"; "impalpable shadows"; "impalpable distinctions"; "as impalpable as a dream"
(impalpability) intangibility: the quality of being intangible and not perceptible by touch
(impalpably) insubstantially: not substantially; lacking substantial expression or fullness
An unobservable (also called impalpable) is an entity whose existence, nature, properties, qualities or relations are not directly observable by man. In philosophy of science typical examples of "unobservables" are atomic particles, the force of gravity, causation and beliefs or desires. ...
Intangible; incapable of being felt; not readily obvious or intellectually perceptible.