mulishly vs obdurately

mulishly and obdurately both are adverbs.

Word	Noun	Adjective	Verb	Adverb
mulishly	No	No	No	Yes
obdurately	No	No	No	Yes

As adverbs, mulishly and obdurately are synonyms defined as:

Other synonyms of mulishly include cussedly, obstinately, pig-headedly, stubbornly.

mulishly (adverb)	obdurately (adverb)
in a stubborn unregenerate manner	in a stubborn unregenerate manner