boom
bottoming out
business cycle
business fluctuations
bust
cascade
catabasis
cataract
chute
collapse
comedown
cooling off
crash
crisis
debacle
debasement
decadence
decadency
deceleration
declension
declination
decline
decline and fall
decrescendo
defluxion
deformation
degeneracy
degenerateness
degeneration
degradation
demotion
depravation
depravedness
depreciation
depression
derogation
descending
descension
descent
deterioration
devolution
diminuendo
dip
dive
down
downbend
downcome
downcurve
downfall
downflow
worsening
downspin
breakthrough
crunch
cutback
dislocation
disruption
fluctuations
imbalance
inflation
layoff
liquidity
meltdown
recession
reorganization
repercussion
resurgence
setback
shortage
shortfall
slowdown
slump
upheaval
upswing
upturn