mulishness vs obstinacy

mulishness and obstinacy both are nouns.

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

As nouns, mulishness and obstinacy are synonyms defined as:

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

Other synonyms of mulishness include obstinance, stubbornness.

mulishness (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