敷衍了事

fūyǎnliǎoshì
(idiom) to do things half-heartedly; to merely go through the motions

CEDICT

to work halfheartedly; to gloss things over; to go through the motions

Wiktionary

形容辦事不認真或對人不熱情，表面應付了事。

重編國語辭典

對人缺乏誠意或做事不夠認真

維基詞典

Entry Composition

1 敷衍 fūyǎn
  1. to elaborate (on a theme)
  2. to expound (the classics)
  3. perfunctory
  4. to skimp
  5. to botch
  6. to do sth half-heartedly or just for show
  7. barely enough to get by
2 了事 liǎoshì
  1. to dispose of a matter
  2. to be done with it