self-will vs obstinacy

self-will and obstinacy both are nouns.

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

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

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

Other synonyms of self-will include bullheadedness, obstinance, pigheadedness, stubbornness.

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