obstinance vs obstinacy

obstinance and obstinacy both are nouns.

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

As nouns, obstinance and obstinacy are synonyms defined as:

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

Other synonyms of obstinance include mulishness, stubbornness.

As nouns, obstinance and obstinacy are synonyms defined as:

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

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

obstinance (noun)	obstinacy (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