1.苦涩的，有苦味的
2.难以接受的，引起悲伤的，不受欢迎的
3.引起、感觉、或显示出季度，憎恶的
4.严寒的
不可数名词：辛酸，苦味，苦酒 词形变化
- 形容词比较级 bitterer，bitterest
- 副词 bitterly
- 名称 bitterness
- 时态 bittered，bittering，bitters
- extremely and sharply
- harsh or corrosive in tone
- the property of having a harsh unpleasant taste
- one of the four basic taste sensations; sharp and disagreeable; like the taste of quinine
- very difficult to accept or bear
- expressive of severe grief or regret
- causing a sharply painful or stinging sensation; used especially of cold
- make bitter
- marked by strong resentment or cynicism
- proceeding from or exhibiting great hostility or animosity
- the taste experience when quinine or coffee is taken into the mouth
- English term for a dry sharp-tasting ale with strong flavor of hops (usually on draft)