subversionary (?.)
- baneful
- calamitous
- cataclysmal
- cataclysmic
- catastrophic
- consuming
- consumptive
- deadly
- demolishing
- demolitionary
- depredatory
- desolating
- destroying
- destructive
- devastating
- disastrous
- doomful
- fatal
- fateful
- fratricidal
- internecine
- nihilist
- nihilistic
- ravaging
- ruining
- ruinous
- self-destructive
- subversive
- suicidal
- vandalic
- vandalish
- vandalistic
- wasteful
- wasting
- withering
