willfulness vs wildness

willfulness and wildness both are nouns.

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

As nouns, wildness is a hyponym of willfulness; that is, wildness is a word with a more specific, narrower meaning than willfulness:

willfulness: the trait of being prone to disobedience and lack of discipline
wildness: an unruly disposition to do as one pleases

Other hyponyms of willfulness include contrariness, perverseness, perversity.

willfulness (noun)	wildness (noun)
the trait of being prone to disobedience and lack of discipline	an intractably barbarous or uncultivated state of nature
	an unruly disposition to do as one pleases
	the property of being wild or turbulent
	a feeling of extreme emotional intensity