incoherent vs natural philosophy

incoherent is not a noun while natural philosophy is a noun.

Word	Noun	Adjective	Verb	Adverb
incoherent	No	Yes	No	No
natural philosophy	Yes	No	No	No

incoherent (noun)	natural philosophy (noun)
	the science of matter and energy and their interactions

incoherent (adjective)	natural philosophy (adjective)
without logical or meaningful connection
(physics) of waves having no stable definite or stable phase relation
unable to express yourself clearly or fluently