kín-á-sèng囡仔性

temper of a child

temper of a child; childishness; childish

English Wiktionary, “囡仔性” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%9B%A1%E4%BB%94%E6%80%A7 · confidence: Medium (Wiktionary)