having a harsh, disagreeably acrid taste, like that of aspirin, quinine, wormwood, or aloes.

producing one of the four basic taste sensations; not sour, sweet, or salt.

hard to bear; grievous; distressful

a bitter sorrow.

causing pain; piercing; stinging

a bitter chill.

characterized by intense antagonism or hostility

bitter hatred.

hard to admit or accept

a bitter lesson.

resentful or cynical

bitter words.

that which is bitter; bitterness

Learn to take the bitter with the sweet.

British . a very dry ale having a strong taste of hops.

to make bitter

herbs employed to bitter vermouth.

extremely; very; exceedingly

a bitter cold night.

adjective

bland , mild , pleasant , sweet , agreeable , content , genial , kind , nice , good , helping , wonderful

adjective

absinthal , absinthian , acerb , acerbic , acid , acrid , amaroidal , astringent , harsh , sour , tart , unsweetened , vinegary , acrimonious , alienated , antagonistic , begrudging , biting , caustic , crabby , divided , embittered , estranged , fierce , freezing , hateful , intense , irreconcilable , morose , rancorous , resentful , sardonic , severe , sore , stinging , sullen , virulent , vitriolic , with chip on shoulder , afflictive , annoying , bad , brutal , calamitous , cruel , dire , disagreeable , displeasing , distasteful , disturbing , galling , grievous , hard , heartbreaking , hurtful , inclement , intemperate , merciless , offensive , poignant , provoking , rigorous , rugged , ruthless , savage , sharp , unpalatable , unpleasant , vexatious , woeful , rough , indigestible , painful , acetous , acidulous , aggrieved , austere , bleak , censorious , corrosive , cynical , distressing , hostile , implacable , incisive , irate , jaundiced , keen , malicious , mordacious , mordant , nasty , pessimistic , piercing , piquant , piqued , sarcastic , scathing , vehement , vituperative