明日黄花

明日黃花
míngrìhuánghuā
  1. lit. chrysanthemums after the Double Ninth Festival (idiom)
  2. fig. outdated
  3. thing of the past
  4. dead letter

CEDICT

an object or person that is past their prime; what is obsolete

Wiktionary

明日，重阳节后。黄花，菊花。明日黄花指在重阳节欣赏菊花最能景与情会，若错过时令就毫无兴味。后比喻为过时的事物。

重編國語辭典

过气的事情，令人毫无兴味

維基詞典

Entry Composition

1 明日 míngrì tomorrow
2 黄花 huánghuā
  1. yellow flowers (of various types)
  2. chrysanthemum
  3. cauliflower
  4. (yellow) daylily
  5. a young virgin (boy or girl)

Related entries

虚文 xūwén
  1. dead letter
  2. rule no longer in force
  3. empty formality