helpless vs helplessness

helpless is not a noun while helplessness is a noun.

Word	Noun	Adjective	Verb	Adverb
helpless	No	Yes	No	No
helplessness	Yes	No	No	No

helpless (noun)	helplessness (noun)
	powerlessness revealed by an inability to act
	a feeling of being unable to manage
	the state of needing help from something

helpless (adjective)	helplessness (adjective)
unable to manage independently
unable to function; without help
lacking in or deprived of strength or power