concisely vs briefly

concisely and briefly both are adverbs.

Word	Noun	Adjective	Verb	Adverb
concisely	No	No	No	Yes
briefly	No	No	No	Yes

As adverbs, concisely and briefly are synonyms defined as:

Other synonyms of concisely include in brief, in short, shortly.

concisely (adverb)	briefly (adverb)
in a concise manner; in a few words	for a short time
	in a concise manner; in a few words