all the same vs withal

all the same and withal both are adverbs.

Word	Noun	Adjective	Verb	Adverb
all the same	No	No	No	Yes
withal	No	No	No	Yes

As adverbs, all the same and withal are synonyms defined as:

all the same and withal: despite anything to the contrary (usually preceding a concession)

Other synonyms of all the same include at the same time, even so, however, nevertheless, nonetheless, notwithstanding, still, yet.

all the same (adverb)	withal (adverb)
despite anything to the contrary (usually preceding a concession)	together with this
	despite anything to the contrary (usually preceding a concession)