aging
at rest
calm
cloistered
coming apart
contractive
cool
cracking
crumbling
decadent
declining
decreasing
decrescendo
decrescent
degenerate
deliquescent
deteriorating
diminishing
diminuendo
disintegrating
doting
draining
drooping
dwindling
dying
ebbing
effete
even-tenored
fading
failing
falling
flagging
fragmenting
getting on
going to pieces
growing old
halcyon
hushed
impassive
isolated
languishing
lessening
marcescent
moldering
on the wane
pacific
peaceable
peaceful
pining
decrease
drop-off
abstaining
ascertaining
attaining
campaigning
caning
chaining
complaining
constraining
containing
deigning
detaining
disdaining
entertaining
explaining
feigning
gaining
maintaining
obtaining
ordaining
overtraining
painting
pertaining
raining
refraining
regaining
reigning
reining
remaining
restraining
retaining
retraining
staining
straining
sustaining
training