im·ma·te·ri·al /ˌɪməˈtɪriəl/
 (a.)非物質的,無形的,精神的


 Im·ma·te·ri·al a.
 1. Not consisting of matter; incorporeal; spiritual; disembodied.
    Angels are spirits immaterial and intellectual.   --Hooker.
 2. Of no substantial consequence; without weight or significance; unimportant; as, it is wholly immaterial whether he does so or not.
 Syn: -- Unimportant; inconsequential; insignificant; inconsiderable; trifling.

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 immaterial
      adj 1: of no importance or relevance especially to a law case; "an
             objection that is immaterial after the fact" [ant: material]
      2: without material form or substance; "an incorporeal spirit"
         [syn: incorporeal] [ant: corporeal]
      3: not consisting of matter; "immaterial apparitions"; "ghosts
         and other immaterial entities" [syn: nonmaterial] [ant:
         material]
      4: not pertinent to the matter under consideration; "an issue
         extraneous to the debate"; "the price was immaterial";
         "mentioned several impertinent facts before finally coming
         to the point" [syn: extraneous, impertinent, orthogonal]
      5: (often followed by `to') lacking importance; not mattering
         one way or the other; "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" [syn:
          indifferent]