Meaning and Usage
The adjective 苦い (にがい) primarily describes a bitter taste, such as that of coffee, medicine, or certain vegetables. It is a common word used in everyday conversation when talking about flavors.
Figurative Use
Besides literal taste, 苦い is often used metaphorically to describe unpleasant or painful experiences, such as 苦い経験 (bitter experience). This usage conveys emotional or psychological hardship rather than physical taste.
Common Collocations
- 苦い薬 (にがいくすり): bitter medicine, often unpleasant but necessary.
- 苦い思い出 (にがいおもいで): bitter memory, a painful or regrettable past event.
- 苦い顔をする: to make a bitter face, showing displeasure or discomfort.
Register and Politeness
苦い is neutral and can be used in both casual and polite contexts. It is a straightforward descriptive adjective without strong formality.
Learner Tips
Be careful not to confuse 苦い with 辛い (からい), which means spicy or hot in taste. 苦い specifically refers to bitterness, a distinct flavor sensation. Also, when used figuratively, 苦い often implies a lesson learned through hardship, so it carries emotional weight beyond just taste.