Definition of "Intangible" :

noun: assets that are saleable though not material or physical

adjective: lacking substance or reality; incapable of being touched or seen

"That intangible thing--the soul."

adjective: hard to pin down or identify

"An intangible feeling of impending disaster."

adjective: incapable of being perceived by the senses especially the sense of touch

"The intangible constituent of energy."

adjective: (of especially business assets) not having physical substance or intrinsic productive value

"Intangible assets such as good will."