What is the meaning of immaterial?

adjective

• Of no importance or relevance especially to a law case.
  • usage: "an objection that is immaterial after the fact"
• Without material form or substance.
  • usage: "an incorporeal spirit"
  • synonyms: incorporeal
• Not consisting of matter.
  • usage: "immaterial apparitions"; "ghosts and other immaterial entities"
  • synonyms: nonmaterial
• Not pertinent to the matter under consideration.
  • usage: "an issue extraneous to the debate"; "the price was immaterial"; "mentioned several impertinent facts before finally coming to the point"
  • synonyms: extraneous, impertinent, orthogonal
• Often followed by `to'. ( lacking importance; not mattering one way or the other)
  • usage: "whether you choose to do it or not is a matter that is quite immaterial (or indifferent)"; "what others think is altogether indifferent to him"
  • synonyms: indifferent