inflexible
Gothic
Victorian
anile
antediluvian
antiquated
antique
archaic
backed
calcified
callous
calloused
case-hardened
classical
crabbed
crusted
crusty
crystallized
debilitated
decrepit
doddered
doddering
doddery
feeble
fossil
gerontal
gerontic
granulated
grown old
hardened
hornified
incrusted
indurate
indurated
infirm
lapidified
medieval
mid-Victorian
mossbacked
moth-eaten
mummylike
of other times
old-world
ossified
palsied
papery-skinned
petrified
ravaged with age
reinforced
rickety