unreal vs imitative

unreal and imitative both are adjectives.

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

unreal (adjective)	imitative (adjective)
lacking in reality or substance or genuineness; not corresponding to acknowledged facts or criteria	marked by or given to imitation
not actually such; being or seeming fanciful or imaginary	(of words) formed in imitation of a natural sound
lacking material form or substance; unreal	not genuine; imitating something superior
contrived by art rather than nature