circumstantial vs specific

circumstantial is not a noun while specific is a noun.

Word	Noun	Adjective	Verb	Adverb
circumstantial	No	Yes	No	No
specific	Yes	Yes	No	No

circumstantial (noun)	specific (noun)
	a medicine that has a mitigating effect on a specific disease
	a fact about some part (as opposed to general)

circumstantial (adjective)	specific (adjective)
fully detailed and specific about particulars	(sometimes followed by `to') applying to or characterized by or distinguishing something particular or special or unique
	being or affecting a disease produced by a particular microorganism or condition; used also of stains or dyes used in making microscope slides
	relating to or distinguishing or constituting a taxonomic species
	stated explicitly or in detail