contrariness vs willfulness

contrariness and willfulness both are nouns.

Word	Noun	Adjective	Verb	Adverb
contrariness	Yes	No	No	No
willfulness	Yes	No	No	No

As nouns, willfulness is a hypernym of contrariness; that is, willfulness is a word with a broader meaning than contrariness:

contrariness: deliberate and stubborn unruliness and resistance to guidance or discipline
willfulness: the trait of being prone to disobedience and lack of discipline

Other hypernyms of contrariness include fractiousness, unruliness, wilfulness.

contrariness (noun)	willfulness (noun)
a fussy and eccentric disposition	the trait of being prone to disobedience and lack of discipline
deliberate and stubborn unruliness and resistance to guidance or discipline