细腻

Traditional (Taiwan): 細膩

On the HSK 7-9 vocabulary list, at CEFR level C2.

xìnì ㄒㄧˋ ㄋㄧˋ

- smooth satiny delicate
  of skin etc
- (of a performance, depiction, craftsmanship etc) finely detailed subtle exquisite meticulous

Character by character

Other words read xìnì

xini with other tones

悉尼

Often confused with xini

Sources