hopeless vs hopeful

hopeless is not a noun while hopeful is a noun.

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

hopeless (noun)	hopeful (noun)
	an ambitious and aspiring young person

hopeless (adjective)	hopeful (adjective)
without hope because there seems to be no possibility of comfort or success	having or manifesting hope
(informal to emphasize how bad it is) beyond hope of management or reform	likely to turn out well in the future
certain to fail
of a person unable to do something skillfully