transientness
transient
line drawn on water
temporal
immortality
interim
fugitive
transitionary
cyclogenic
ex post facto
where are the snows of yesteryear
delta particle
achronic
ephemeron
transitionality
transitionalness
outlast
obsoletion
heterodynamic
protemporaneous
everliving
semiperpetual
pro tem
deciduous
age
eld
old age
death
contingent
geezerhood
temporaneousness
life extension
Gompertz distribution
years
retrocessional
transience
stopgap
Lindy effect
from the dead
innings
instadeath
outlive
intransient
ephemerality
perpetuate
retrodialysed
womb-to-tomb
lifelong
transitionally
intermittency