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

Similar word(s): unbodied, bodiless, discorporate, disembodied, unbodied, unembodied, spiritual, incorporeal

3. not consisting of matter

- immaterial apparitions

- ghosts and other immaterial entities

Similar word(s): insubstantial, unreal, unsubstantial, intangible, nonphysical, nonmaterial

4. not pertinent to the matter under consideration

- the price was immaterial

Similar word(s): irrelevant, 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)

Similar word(s): unimportant, indifferent

Sentences with immaterial as an adjective:

- Because ghosts are immaterial, they can pass through walls.

- Objection, Your Honour! The defendant's criminal record is immaterial to this case.