bitter definition

1. English term for a dry sharp-tasting ale with strong flavor of hops (usually on draft)
2. the taste experience when quinine or coffee is taken into the mouth
3. the property of having a harsh unpleasant taste
4. make bitter
5. very difficult to accept or bear
• examples: the bitter truth
• examples: a bitter sorrow
6. expressive of severe grief or regret
• examples: shed bitter tears
7. proceeding from or exhibiting great hostility or animosity
• examples: a bitter struggle
• examples: bitter enemies
8. causing a sharp and acrid taste experience
• examples: quinine is bitter