[{"Bold_text": "adjective", "List Items": ["of or like a beast ;bestial.", "Informal.nasty; unpleasant; disagreeable.Synonyms: disgusting , mean , foul , vile , hateful , abominable"]}, {"Bold_text": "adverb", "List Items": ["Chiefly British Informal.very; exceedingly:It's beastly cold out.", "British Informal.disagreeably; outrageously:beastly rude."]}]