not able to be perceived by touch; impalpable
not clear or definite; vague
The unknown never ceased to press upon him with its mysteries and terrors, intangible and ever-menacing — Jack London
said of assets such as patents or goodwill: having no physical form but having a value and able to be bought and sold
intangibility /-ʹbiliti/ noun
intangibly adv
[French intangible from medieval Latin intangibilis, from in-1 + late Latin tangibilis: see tangible1]