stubbornness vs self-will

stubbornness and self-will both are nouns.

Word	Noun	Adjective	Verb	Adverb
stubbornness	Yes	No	No	No
self-will	Yes	No	No	No

As nouns, stubbornness and self-will are synonyms defined as:

stubbornness and self-will: resolute adherence to your own ideas or desires

Other synonyms of stubbornness include bullheadedness, obstinacy, obstinance, pigheadedness.

stubbornness (noun)	self-will (noun)
the trait of being difficult to handle or overcome	resolute adherence to your own ideas or desires
resolute adherence to your own ideas or desires	the trait of resolutely controlling your own behavior