辛酸
xīn suān · HSK 7
fig. sad
🌶️🍋 辛 (spicy/bitter) + 酸 (sour) = the sharp tastes that stand for life's hardship
Both characters name harsh flavors: 辛 is the hot-pungent bite of chili, 酸 the sour sting of vinegar. Chinese fuses the two literal tastes into one word for sorrow and the bitterness of a hard life.
酸 — wine/jar radical 酉 + 夋 (phonetic)
酸 is a semantic-phonetic compound. The left side 酉 depicts a wine jar and signals meanings related to fermentation and alcohol. The right side 夋 supplies the sound. Originally describing the sour taste of fermented wine, it broadened to mean 'sour' in general and figuratively 'aching' or 'sad'.