unreal vs synthetic

unreal is not a noun while synthetic is a noun.

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

unreal (noun)	synthetic (noun)
	a compound made artificially by chemical reactions

unreal (adjective)	synthetic (adjective)
lacking in reality or substance or genuineness; not corresponding to acknowledged facts or criteria	of a proposition whose truth value is determined by observation or facts
not actually such; being or seeming fanciful or imaginary	systematic combining of root and modifying elements into single words
lacking material form or substance; unreal	involving or of the nature of synthesis (combining separate elements to form a coherent whole) as opposed to analysis
contrived by art rather than nature	not of natural origin; prepared or made artificially
	not genuine or natural
	artificial as if portrayed in a film