immaterial (adj)

of no importance or relevance especially to a law case

"an objection that is immaterial after the fact"

incorporeal, immaterial (adj)

without material form or substance

"an incorporeal spirit"

immaterial, nonmaterial (adj)

not consisting of matter

"immaterial apparitions"; "ghosts and other immaterial entities"

extraneous, immaterial, impertinent, orthogonal (adj)

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"

immaterial, indifferent (adj)

(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"

immaterial (Adjective)

Having no matter or substance.

immaterial (Adjective)

Irrelevant.