valuelessness vs worthlessness

valuelessness and worthlessness both are nouns.

Word	Noun	Adjective	Verb	Adverb
valuelessness	Yes	No	No	No
worthlessness	Yes	No	No	No

As nouns, worthlessness is a hypernym of valuelessness; that is, worthlessness is a word with a broader meaning than valuelessness:

valuelessness: having none of the properties that endow something with value
worthlessness: having no qualities that would render it valuable or useful

Other hypernyms of valuelessness include ineptitude.

valuelessness (noun)	worthlessness (noun)
having none of the properties that endow something with value	having no qualities that would render it valuable or useful
	the quality of being without practical use