"immaterial" in the adjective sense
1. immaterial
of no importance or relevance especially to a law case
"an objection that is immaterial after the fact"
2. incorporeal, immaterial
without material form or substance
"an incorporeal spirit"
3. immaterial, nonmaterial
not consisting of matter
"immaterial apparitions"
"ghosts and other immaterial entities"
4. extraneous, immaterial, impertinent, orthogonal
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"
5. immaterial, indifferent
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"
Source: WordNet® (An amazing lexical database of English)
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