不务正业

不務正業
zhèng
  1. not to engage in honest work
  2. to ignore one's proper occupation
  3. not to attend to one's proper duties

CEDICT

  1. to disregard one's real occupation; to not attend to one's proper duties
  2. to not do an honest day's work; to not live by honest labor

Wiktionary

正经事不从正当工作

重編國語辭典

Entry Composition