foreign vs adulterant

foreign is not a noun while adulterant is a noun.

Word	Noun	Adjective	Verb	Adverb
foreign	No	Yes	No	No
adulterant	Yes	Yes	No	No

foreign (noun)	adulterant (noun)
	any substance that lessens the purity or effectiveness of a substance

foreign (adjective)	adulterant (adjective)
relating to or originating in or characteristic of another place or part of the world	making impure or corrupt by adding extraneous materials
of concern to or concerning the affairs of other nations (other than your own)
not belonging to that in which it is contained; introduced from an outside source
not contained in or deriving from the essential nature of something