unsaturated vs chemistry

unsaturated is not a noun while chemistry is a noun.

Word	Noun	Adjective	Verb	Adverb
unsaturated	No	Yes	No	No
chemistry	Yes	No	No	No

unsaturated (noun)	chemistry (noun)
	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
	the way two individuals relate to each other
	the chemical composition and properties of a substance or object

unsaturated (adjective)	chemistry (adjective)
used of a compound (especially of carbon) containing atoms sharing more than one valence bond
not saturated; capable of dissolving more of a substance at a given temperature
(of color) not chromatically pure; diluted