好大喜功

hàogōng
  1. to rejoice in grandiose deeds
  2. to strive to achieve extraordinary things

CEDICT

to crave greatness and success; to rejoice in grandiose deeds

Wiktionary

喜欢做大大功多用形容作风铺张浮夸踏实

重編國語辭典

行事作风铺张浮夸不切实际

維基詞典

Entry Composition