disregardless vs disregarding

disregardless and disregarding both are adverbs.

Word	Noun	Adjective	Verb	Adverb
disregardless	No	No	No	Yes
disregarding	No	No	No	Yes

As adverbs, disregardless and disregarding are synonyms defined as:

disregardless and disregarding: in spite of everything; without regard to drawbacks

Other synonyms of disregardless include irrespective, no matter, regardless.

disregardless (adverb)	disregarding (adverb)
in spite of everything; without regard to drawbacks	in spite of everything; without regard to drawbacks