没心没肺 méi xīn méi fèi

DEFINITIONS

  1. simple-minded
  2. thoughtless
  3. heartless
  4. nitwitted

CHARACTERS

没 méi not, have not, none; drown, sink
心 xīn heart; mind, intelligence; soul
没 méi not, have not, none; drown, sink
肺 fèi lungs