wildness vs willfulness

wildness and willfulness both are nouns.

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

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

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

Other hypernyms of wildness include fractiousness, unruliness, wilfulness.

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