accident
adversity
blow
calamity
casualty
cataclysm
catastrophe
collision
contretemps
crack-up
crash
disaster
dole
grief
ill hap
misadventure
mischance
misfortune
nasty blow
pileup
shipwreck
shock
smash
smashup
staggering blow
tragedy
wreck
chance
fortune
hazard
luck
bereavement
blunder
coincidence
complication
disappointment
drawback
fatality
happen
illness
impediment
inconvenience
interruption
miscalculation
misunderstanding
occurrence
predicament
setback
vicissitudes