Adjective
1. (of especially business assets) not having physical substance or intrinsic productive value;
"intangible assets such as good will"2. incapable of being perceived by the senses especially the sense of touch;
"the intangible constituent of energy"- James Jeans3. hard to pin down or identify;
"an intangible feeling of impending disaster"4. lacking substance or reality; incapable of being touched or seen;
"that intangible thing--the soul"