脑残

腦殘
nǎocán
  1. moronic
  2. brainless
  3. bonehead
  4. retard

CEDICT

Entry Composition

1 脑 nǎo
  1. brain
  2. mind
  3. head
  4. essence
2 残 cán
  1. to destroy
  2. to spoil
  3. to ruin
  4. to injure
  5. cruel
  6. oppressive
  7. savage
  8. brutal
  9. incomplete
  10. disabled
  11. to remain
  12. to survive
  13. remnant
  14. surplus