downfall
//ˈdaʊnˌfɔːl//
Noun
downfallSingular
downfallsPlural
1
A sudden loss of power, status, or success; ruin or destruction.
His arrogance led to his downfall.
2
The cause or reason for someone's ruin or failure.
His gambling addiction was his downfall.
3
A heavy fall of rain or snow.
We got caught in a sudden downfall on our way home.