passiveness vs submissiveness

passiveness and submissiveness both are nouns.

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

As nouns, submissiveness is a hypernym of passiveness; that is, submissiveness is a word with a broader meaning than passiveness:

passiveness: submission to others or to outside influences
submissiveness: the trait of being willing to yield to the will of another person or a superior force etc.

passiveness (noun)	submissiveness (noun)
the trait of remaining inactive; a lack of initiative	the trait of being willing to yield to the will of another person or a superior force etc.
submission to others or to outside influences