downfall (n.)
- atrophy
- bane
- beating
- breakdown
- cascade
- cataract
- chute
- cloudburst
- collapse
- comedown
- conquering
- conquest
- convulsion
- crash
- cropper
- deathblow
- debacle
- decadence
- declension
- declination
- decline
- defeat
- deflation
- degeneracy
- degeneration
- degradation
- deluge
- descension
- descent
- destroyer
- destruction
- devolution
- discomfiture
- down
- downgrade
- downpour
- downturn
- drop
- dropping
- drubbing
- failure
- fall
- flood
- gravitation
- headache
- hiding
- inclination
- licking
- mastery
- overthrow
- overturn
- plash
- pounce
- pour
- pratfall
- problem
- prostration
- quietus
- rainstorm
- rapids
- ruin
- ruination
- sabotage
- scud
- smash
- soaker
- spate
- spout
- stoop
- stumble
- subjugation
- subversion
- swoop
- tailspin
- thrashing
- trimming
- trouble
- trouncing
- tumble
- undoing
- upheaval
- upset
- waterfall
- waterspout
- whipping
