insanely vs deucedly

insanely and deucedly both are adverbs.

Word	Noun	Adjective	Verb	Adverb
insanely	No	No	No	Yes
deucedly	No	No	No	Yes

As adverbs, insanely and deucedly are synonyms defined as:

Other synonyms of insanely include deadly, devilishly, madly.

insanely (adverb)	deucedly (adverb)
in an insane manner	(used as intensives) excessively
(used as intensives) excessively