[{"Bold_text": "adjective", "List Items": ["having a harsh, disagreeably acrid taste, like that of aspirin, quinine, wormwood, or aloes.Synonyms: distasteful , unpalatable , acrid", "producing one of the four basic taste sensations; not sour, sweet, or salt.", "hard to bear; grievous ; distressful :a bitter sorrow.Synonyms: painful , poignant", "causing pain; piercing ;stinging:a bitter chill.Synonyms: nipping , biting", "characterized by intense antagonism or hostility:bitter hatred.Synonyms: relentless , ruthless , cruel , fierce", "hard to admit or accept:a bitter lesson.", "resentful or cynical:bitter words.Synonyms: scornful , sardonic , biting , caustic , acrimonious"]}, {"Bold_text": "noun", "List Items": ["that which is bitter; bitterness :Learn to take the bitter with the sweet.", "British.a very dry ale having a strong taste of hops."]}, {"Bold_text": "verb (used with object)", "List Items": ["to make bitter:herbs employed to bitter vermouth."]}, {"Bold_text": "adverb", "List Items": ["extremely ; very ; exceedingly :a bitter cold night."]}]