寥若晨星

liáoruòchénxīng
  1. rare as morning stars (idiom)
  2. few and far between
  3. sparse

CEDICT

very few; as few as the stars at dawn

Wiktionary

形容數量稀少。

重編國語辭典

數量稀少

維基詞典

Entry Composition

1 寥 liáo
  1. empty
  2. lonesome
  3. very few
2 若 ruò
  1. to seem
  2. like
  3. as
  4. if
3 晨星 chénxīng morning stars

Related entries

寥落 liáoluò
  1. sparse
  2. few and far between
疏淡 shūdàn
  1. sparse
  2. thin
  3. distant
疏疏 shūshū
  1. sparse
  2. blurred
  3. old for 楚楚 chǔchǔ
  4. neat
  5. lovely
疏落 shūluò
  1. sparse
  2. scattered
稀少 xīshǎo
  1. sparse
  2. rare
稀疏 xīshū
  1. sparse
  2. infrequent
  3. thinly spread
稀疏、低矮、枝葉稀疏的雪松被數量更多、顏色更深、更綠、更茂密的雪松所取代，這些雪松又被高大、枝繁葉茂、結滿綠色漿果的樹木所取代。

Scant, low, scraggy cedars gave place to more numerous, darker, greener, bushier ones, and these to high, full-foliaged, green-berried trees.

Source: Tatoeba

疏 shū
  1. to dredge
  2. to clear away obstruction
  3. thin
  4. sparse
  5. scanty
  6. distant (relation)
  7. not close
  8. to neglect
  9. negligent
  10. to present a memorial to the Emperor
  11. commentary
  12. annotation