baseball game vs hitless

baseball game is a noun but hitless is not a noun.

Word	Noun	Adjective	Verb	Adverb
baseball game	Yes	No	No	No
hitless	No	Yes	No	No

baseball game (noun)	hitless (noun)
a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs

baseball game (adjective)	hitless (adjective)
	(of a batter) without a hit
	having no points scores