mess vs messy

mess is a noun but messy is not a noun.

Word	Noun	Adjective	Verb	Adverb
mess	Yes	No	Yes	No
messy	No	Yes	No	No

mess (noun)	messy (noun)
a (large) military dining room where service personnel eat or relax
a meal eaten in a mess hall by service personnel
soft semiliquid food
(often followed by `of') a large number or amount or extent
a state of confusion and disorderliness
informal terms for a difficult situation

mess (adjective)	messy (adjective)
	dirty and disorderly

mess (verb)	messy (verb)
make a mess of or create disorder in
eat in a mess hall