cussedly vs obdurately

cussedly and obdurately both are adverbs.

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

As adverbs, cussedly and obdurately are synonyms defined as:

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

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