colloquialism vs hopeless

colloquialism is a noun but hopeless is not a noun.

Word	Noun	Adjective	Verb	Adverb
colloquialism	Yes	No	No	No
hopeless	No	Yes	No	No

colloquialism (noun)	hopeless (noun)
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech

colloquialism (adjective)	hopeless (adjective)
	without hope because there seems to be no possibility of comfort or success
	(informal to emphasize how bad it is) beyond hope of management or reform
	certain to fail
	of a person unable to do something skillfully