synthetic vs artificial

synthetic is a noun but artificial is not a noun.

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

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

synthetic (adjective)	artificial (adjective)
of a proposition whose truth value is determined by observation or facts	contrived by art rather than nature
systematic combining of root and modifying elements into single words	artificially formal
involving or of the nature of synthesis (combining separate elements to form a coherent whole) as opposed to analysis	not arising from natural growth or characterized by vital processes
not of natural origin; prepared or made artificially
not genuine or natural
artificial as if portrayed in a film