Intangible, a.
Etymology: [Pref. in- not + tangible: cf. F. intangible.]
Not tangible; incapable of being touched; not perceptible to the touch; impalpable; imperceptible. Bp. Wilkins. A corporation is an artificial, invisible, intangible being. Marshall. -- In*tan"gi*ble*ness, n. -- In*tan"gi*bly, adv.
Shades of meaning
Fernald lists intangible only as an antonym, under physical.
He lists it without comment; the entries above explain its neighbors.
Synonyms
none given