perverseness vs perverse

perverseness is a noun but perverse is not a noun.

Word	Noun	Adjective	Verb	Adverb
perverseness	Yes	No	No	No
perverse	No	Yes	No	No

perverseness (noun)	perverse (noun)
deliberate and stubborn unruliness and resistance to guidance or discipline
deliberately deviating from what is good

perverseness (adjective)	perverse (adjective)
	deviating from what is considered moral or right or proper or good
	resistant to guidance or discipline
	marked by a disposition to oppose and contradict