continuous
uninterrupted
ageless
articulated
catenated
ceaseless
chattering
coeternal
concatenated
connected
constant
continual
continued
continuing
cyclical
dateless
direct
endless
eternal
eterne
ever-being
ever-durable
ever-during
ever-recurring
everlasting
everliving
featureless
frequent
gapless
haunting
immediate
immemorial
indestructible
infinite
interminable
joined
jointless
linked
machine gun
monotonous
never-ceasing
never-ending
nonstop
nonterminating
nonterminous
olamic
oscillating
furious
insistent
intermittent
persistent
shrill
steady
Crescent
adolescent
antidepressant
convalescent
crescent
depressant
effervescent
evanescent
fluorescent
incandescent
iridescent
luminescent
obsolescent
quiescent
suppressant