cussedly vs pig-headedly

cussedly and pig-headedly both are adverbs.

Word	Noun	Adjective	Verb	Adverb
cussedly	No	No	No	Yes
pig-headedly	No	No	No	Yes

As adverbs, cussedly and pig-headedly are synonyms defined as:

Other synonyms of cussedly include mulishly, obdurately, obstinately, stubbornly.

cussedly (adverb)	pig-headedly (adverb)
in a stubborn unregenerate manner	in a stubborn unregenerate manner