infinite
unaltered
unchanged
undatable
age-old
ageless
ancient
antique
auld
ceaseless
coeternal
constant
continual
continuous
elderly
endless
eternal
eterne
ever-being
ever-durable
ever-during
everlasting
everliving
hoary
immemorial
incessant
indestructible
interminable
never-ceasing
never-ending
nonstop
nonterminating
nonterminous
of old
of yore
olamic
old
old as Methuselah
old as history
old as time
old-time
olden
perdurable
permanent
perpetual
sempiternal
steady
timeless
unceasing
undated
unending
unintermitting
uninterrupted
article
black-cloaked
blue-tinged
bone-melting
cosmogonic
crappier
dirge-like
faustian
footless
gray-walled
parentless
silvery-haired
steel-blue
sticklike
unrenowned
vocalic