subsequent vs attendant

subsequent is not a noun while attendant is a noun.

Word	Noun	Adjective	Verb	Adverb
subsequent	No	Yes	No	No
attendant	Yes	Yes	No	No

subsequent (noun)	attendant (noun)
	an event or situation that happens at the same time as or in connection with another
	someone who waits on or tends to or attends to the needs of another
	a person who is present and participates in a meeting

subsequent (adjective)	attendant (adjective)
following in time or order	being present (at a meeting or event, etc.)
	occurring with or following as a consequence