obstinacy vs stubbornness

obstinacy and stubbornness both are nouns.

Word	Noun	Adjective	Verb	Adverb
obstinacy	Yes	No	No	No
stubbornness	Yes	No	No	No

As nouns, obstinacy and stubbornness are synonyms defined as:

obstinacy and stubbornness: the trait of being difficult to handle or overcome

Other synonyms of obstinacy include mulishness, obstinance.

As nouns, obstinacy and stubbornness are synonyms defined as:

obstinacy and stubbornness: resolute adherence to your own ideas or desires

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

obstinacy (noun)	stubbornness (noun)
the trait of being difficult to handle or overcome	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