beastly vs brutal

beastly and brutal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
beastly	No	Yes	No	Yes
brutal	No	Yes	No	No

As adjectives, beastly and brutal are synonyms defined as:

beastly and brutal: resembling a beast; showing lack of human sensibility

Other synonyms of beastly include bestial, brute, brutish.

beastly (adjective)	brutal (adjective)
resembling a beast; showing lack of human sensibility	disagreeably direct and precise
(informal) very unpleasant	resembling a beast; showing lack of human sensibility
	punishingly harsh
	(of persons or their actions) able or disposed to inflict pain or suffering

beastly (adverb)	brutal (adverb)
in a beastly manner