瘦削

shòuxuē
slim

CEDICT

slim; skinny; gaunt; lean

Wiktionary

Entry Composition

1 瘦 shòu
  1. thin
  2. to lose weight
  3. (of clothing) tight
  4. (of meat) lean
  5. (of land) unproductive
2 削 xuē
  1. to pare
  2. to reduce
  3. to remove
  4. Taiwan pr. xuè

Related entries

瘦長 shòucháng slim
纖纖 xiānxiān
  1. slim
  2. slender
苗條 miáotiao
  1. (of a woman) slim
  2. slender
  3. graceful
说苗条比说瘦更有礼貌。

It's more polite to say thin than skinny.

Source: Tatoeba

纖微 xiānwēi
  1. slight
  2. slim
纖細 xiānxì
  1. fine
  2. slim
  3. tender