WordWeb Online

1. Of no importance or relevance especially to a law case
   "an objection that is immaterial after the fact"
    
2. Without material form or substance
   "an immaterial spirit"
   - incorporeal
    
3. Not consisting of matter
   "immaterial apparitions"; "ghosts and other immaterial entities"
   - nonmaterial
    
4. Not pertinent to the matter under consideration
   "the price was immaterial"
   - 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"
   - indifferent

See also: beside the point, bodiless, corporality, corporeality, discorporate, disembodied, immateriality, insubstantial, intangible, irrelevant, materiality, nonphysical, physicalness, spiritual, unbodied, unembodied, unimportant, unreal, unsubstantial

Antonym: material

Encyclopedia: Immaterial