The kanji 渋渋 primarily conveys the concept of "astringent," "bitter," or "puckery" taste or sensation. It describes a taste that causes the mouth to pucker and feel dry, often associated with unripe fruits, tea, or wine. It can also extend to the feeling of being "reluctant," "unwilling," or "reserved" in a social context.

・On-yomi (音読み): ジュウ (jū) ・Kun-yomi (訓読み): 渋渋い (shibu i)

⚫︎ 渋渋柿 Translation: persimmon ⚫︎ 渋渋い顔 Translation: a reluctant face; a sour face ⚫︎ 渋渋滞 Translation: congestion; stagnation; delay

The kanji 渋渋 is a phono-semantic compound (形声文字). The phonetic component is 汁 (shiru), meaning "juice" or "liquid." The semantic component is a water-related radical or component, which suggests a connection to liquid and taste. The initial meaning, and the origin of the character, relates to the astringent taste of unripe fruit and the sensation this produces in the mouth. It is the combination of the liquid-related radical and the phonetic component that forms the meaning of "astringent" or "bitter."