Main entry: impalpable, intangible
Definition: incapable of being perceived by the senses especially the sense of touch
Usage: the intangible constituent of energy- James Jeans
Main entry: intangible
Definition: (of especially business assets) not having physical substance or intrinsic productive value
Usage: intangible assets such as good will
Antonyms: tangible
Definition: (of especially business assets) having physical substance and intrinsic monetary value
Main entry: nonphysical, intangible
Definition: lacking substance or reality; incapable of being touched or seen
Usage: that intangible thing--the soul
Antonyms: material
Definition: derived from or composed of matter
Antonyms: material
Definition: directly relevant to a matter especially a law case
Main entry: intangible
Definition: hard to pin down or identify
Usage: an intangible feeling of impending disaster
Antonyms: identifiable
Definition: capable of being identified