intangible

(noun) assets that are saleable though not material or physical. Synonyms: intangible asset.

(adj) (of especially business assets) not having physical substance or intrinsic productive value. Synonyms: intangible (vs. tangible). Example: "Intangible assets such as good will."

(adj) incapable of being perceived by the senses especially the sense of touch. Synonyms: intangible (vs. tangible), impalpable. Example: "The intangible constituent of energy"- james jeans."

(adj) hard to pin down or identify. Example: "An intangible feeling of impending disaster."

(adj) lacking substance or reality; incapable of being touched or seen. Synonyms: nonphysical. Example: "That intangible thing--the soul."