unreal vs celluloid

unreal is not a noun while celluloid is a noun.

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

unreal (noun)	celluloid (noun)
	a medium that disseminates moving pictures
	highly flammable substance made from cellulose nitrate and camphor; used in e.g. motion-picture and X-ray film; its use has decreased with the development of nonflammable thermoplastics

unreal (adjective)	celluloid (adjective)
lacking in reality or substance or genuineness; not corresponding to acknowledged facts or criteria	artificial as if portrayed in a film
not actually such; being or seeming fanciful or imaginary
lacking material form or substance; unreal
contrived by art rather than nature