built-in obsolescence
NRA
superannuate
obsoletion
put out
veteration
retiring
make old bones
third age
early retirement
send to the glue factory
geezerdom
senectitude
put out to pasture
get on
superannuated
postretirement
from the dead
longevously
bow out
withdraw
unaged
call it a day
twilight years
progeroid
consenescence
afterage
ageing
overage
yearsworth
senescent
retire
aging
preretirement
oldhood
elderdom
hyperaged
age
antiquity
yonks
golden years
programmed obsolescence
ancientness
seniorhood
timeless
turn
ageable
cobwebbiness
gerospan
early retirement pensioner