ultimately vs at long last

ultimately and at long last both are adverbs.

Word	Noun	Adjective	Verb	Adverb
ultimately	No	No	No	Yes
at long last	No	No	No	Yes

As adverbs, ultimately and at long last are synonyms defined as:

ultimately and at long last: as the end result of a succession or process

Other synonyms of ultimately include at last, finally, in the end.

ultimately (adverb)	at long last (adverb)
as the end result of a succession or process	as the end result of a succession or process