passiveness vs numbness

passiveness and numbness both are nouns.

Word	Noun	Adjective	Verb	Adverb
passiveness	Yes	No	No	No
numbness	Yes	No	No	No

As nouns, numbness is a hyponym of passiveness; that is, numbness is a word with a more specific, narrower meaning than passiveness:

passiveness: the trait of remaining inactive; a lack of initiative
numbness: the trait of lacking enthusiasm for or interest in things generally

Other hyponyms of passiveness include apathy, indifference, spiritlessness, listlessness, torpidity, torpidness, torpor.

passiveness (noun)	numbness (noun)
the trait of remaining inactive; a lack of initiative	the trait of lacking enthusiasm for or interest in things generally
submission to others or to outside influences	partial or total lack of sensation in a part of the body; a symptom of nerve damage or dysfunction