persistent
unrelenting
relentless
eonian
never ever
never-dying
not while pussy's a cat
nevah
when two Sundays meet
when two Sundays come together
uneverted
Nevuary
nooit
deathless
semper-
undying
⠐⠑
unabiding
immortality
unperpetual
fadelessness
perpetuous
nonperpetual
nonasterisked
endlessly
infinitely
in no way
uncheckered
unremitting
unstraying
nonrestrained
foreverness
everlastingly
unprostrated
uniterable
sempiternous
perpetually
intentionless
⠁⠇⠺
undiscarded
break even
untolerised
impermanent
unexpeditated
nonenduring
unperpetuated
unconstant
unexpedited
full speed ahead
tenuously