perverseness vs perversity

perverseness and perversity both are nouns.

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

As nouns, perverseness and perversity are synonyms defined as:

perverseness and perversity: deliberate and stubborn unruliness and resistance to guidance or discipline

Other synonyms of perverseness include contrariness.

As nouns, perverseness and perversity are synonyms defined as:

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