unreal vs immaterial

unreal and immaterial both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unreal	No	Yes	No	No
immaterial	No	Yes	No	No

unreal (adjective)	immaterial (adjective)
lacking in reality or substance or genuineness; not corresponding to acknowledged facts or criteria	not consisting of matter
not actually such; being or seeming fanciful or imaginary	of no importance or relevance especially to a law case
lacking material form or substance; unreal	without material form or substance
contrived by art rather than nature	not pertinent to the matter under consideration
	(often followed by `to') lacking importance; not mattering one way or the other