defensiveness vs sensitiveness

defensiveness and sensitiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
defensiveness	Yes	No	No	No
sensitiveness	Yes	No	No	No

As nouns, sensitiveness is a hypernym of defensiveness; that is, sensitiveness is a word with a broader meaning than defensiveness:

defensiveness: excessive sensitivity to criticism
sensitiveness: the ability to respond to affective changes in your interpersonal environment

Other hypernyms of defensiveness include sensitivity.

defensiveness (noun)	sensitiveness (noun)
excessive sensitivity to criticism	the ability to respond to physical stimuli or to register small physical amounts or differences
	the ability to respond to affective changes in your interpersonal environment
	(physiology) responsiveness to external stimuli; the faculty of sensation
	sensitivity to emotional feelings (of self and others)