crumbling (?.)
- ablation
- abrasion
- atomization
- attrition
- beating
- breakup
- brecciation
- coming apart
- comminution
- corrosion
- cracking
- crushing
- decadent
- decay
- declining
- decomposition
- decrepit
- degenerate
- degradation
- deteriorating
- detrition
- dilapidated
- dilapidation
- disintegrating
- disintegration
- disjunction
- disorganization
- dissolution
- draining
- drooping
- dusty
- dwindling
- ebbing
- effete
- erosion
- fading
- failing
- falling
- flagging
- fragmentation
- fragmenting
- fusty
- going to pieces
- gone to seed
- granulation
- granulization
- grating
- grinding
- incoherence
- infirm
- languishing
- levigation
- marcescent
- mashing
- mildewed
- moldering
- moldy
- moss-grown
- moth-eaten
- musty
- pining
- poor
- poorish
- pounding
- powdering
- ravages of time
- regressive
- resolution
- retrograde
- retrogressive
- rotten
- rotten at
- ruined
- ruinous
- rusty
- shredding
- shriveling
- sinking
- sliding
- slipping
- slumping
- smashing
- stale
- subsiding
- tabetic
- time-scarred
- timeworn
- trituration
- unfirm
- unsolid
- unsound
- unstable
- unsturdy
- unsubstantial
- waning
- wasting
- wear
- wear and tear
- wilting
- withering
- worn
- worsening
