beastly vs brutish

beastly and brutish both are adjectives.

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

As adjectives, beastly and brutish are synonyms defined as:

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

Other synonyms of beastly include bestial, brutal, brute.

beastly (adjective)	brutish (adjective)
resembling a beast; showing lack of human sensibility	resembling a beast; showing lack of human sensibility
(informal) very unpleasant

beastly (adverb)	brutish (adverb)
in a beastly manner