What is the meaning of intangible?

noun

• Assets that are saleable though not material or physical.
  • synonyms: intangible asset

adjective

• Of especially business assets. ( not having physical substance or intrinsic productive value)
  • usage: "intangible assets such as good will"
• Incapable of being perceived by the senses especially the sense of touch."the intangible constituent of energy- James Jeans
  • synonyms: impalpable
• Hard to pin down or identify.
  • usage: "an intangible feeling of impending disaster"
• Lacking substance or reality; incapable of being touched or seen.
  • usage: "that intangible thing-the soul"
  • synonyms: nonphysical