a of no importance or relevance especially to a law case
an objection that is immaterial after the fact
a without material form or substance
a not consisting of matter
immaterial apparitions ghosts and other immaterial entities
s not pertinent to the matter under consideration
the price was immaterial
s (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)