downturn (n.)
- boom
- bust
- cascade
- cataract
- chute
- collapse
- comedown
- crash
- crisis
- debacle
- debasement
- decadence
- decadency
- deceleration
- declension
- declination
- decline
- decrescendo
- deformation
- degeneracy
- degeneration
- degradation
- demotion
- depravation
- depreciation
- depression
- derogation
- descension
- descent
- deterioration
- devolution
- diminuendo
- dip
- dive
- down
- downfall
- downgrade
- downpour
- downswing
- drop
- dropping
- dwindling
- dying
- ebb
- expansion
- fading
- failing
- failure
- fall
- falloff
- gravitation
- growth
- inclination
- involution
- lapse
- low
- peak
- peaking
- plunge
- pounce
- prosperity
- rapids
- recession
- recovery
- regression
- remission
- retreat
- retrogression
- sag
- slip
- slippage
- slowdown
- slump
- stoop
- subsidence
- swoop
- upturn
- wane
- waterfall