willfulness vs wilfulness

willfulness and wilfulness both are nouns.

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

As nouns, willfulness and wilfulness are synonyms defined as:

willfulness and wilfulness: the trait of being prone to disobedience and lack of discipline

Other synonyms of willfulness include fractiousness, unruliness.

willfulness (noun)	wilfulness (noun)
the trait of being prone to disobedience and lack of discipline	the trait of being prone to disobedience and lack of discipline