The best replacement for brain death is coma.

The best alternatives to brain death are rated as following:
★★★★★  coma
★★★★★  cardiac death
★★★★  persistent vegetative state
★★★  cerebral death
★★  vegetative state
★★  clinical death
★  brain stem death
★  dcd
★  death
★  brain damage
  comatose
  circulatory death
  brain dead
  partial brain death
  heart death
  cardiac arrest
  higher brain death

Your alternative for brain death is not listed? Suggest!
Speaking about brain death, one probably shouldn't forget about organ donation.

Other search terms related to brain death and their ratings are:
★★★★★ organ donation
★★★★★ life support
★★★★ heart beat
You have in mind a companion for brain death and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of brain death in all years. Click on graph for more.
brain death
coma
cardiac death