苦にがさ

noun

bitterness; bitter taste

Refers to the quality or degree of bitterness, often used for food, drink, or metaphorically for experiences.

• このコーヒーの苦にがさがちょうどいい。

  The bitterness of this coffee is just right.

• 人じん生せいの苦にがさを知しる。

  To know the bitterness of life.