bitter in WordNet English dictionary

1. harsh or corrosive in tone
   "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation"; "a vitriolic critique"
   acerb  acerbic  acid  acrid  bitter  blistering  caustic  sulfurous  sulphurous  virulent  vitriolic 
   
2. marked by strong resentment or cynicism
   "an acrimonious dispute"; "bitter about the divorce"
   acrimonious  bitter 
   
3. causing a sharply painful or stinging sensation; used especially of cold
   "bitter cold"; "a biting wind"
   biting  bitter 
   
4. proceeding from or exhibiting great hostility or animosity
   "a bitter struggle"; "bitter enemies"
   bitter 
   
5. very difficult to accept or bear
   "the bitter truth"; "a bitter sorrow"
   bitter 
   
6. expressive of severe grief or regret
   "shed bitter tears"
   bitter 
   
7. causing a sharp and acrid taste experience;"quinine is bitter"
   bitter 
   

1. extremely and sharply
   "it was bitterly cold"; "bitter cold"
   piercingly  bitterly  bitingly  bitter  piercingly  bitterly  bitingly  bitter 
   

1. the property of having a harsh unpleasant taste
   bitterness  bitter 
   
2. the taste experience when quinine or coffee is taken into the mouth
   bitter  bitterness 
   
3. English term for a dry sharp-tasting ale with strong flavor of hops (usually on draft)
   bitter 
   

1. make bitter
   bitter