The phrase "a sudden downfall" is correct and usable in written English.
It can be used to describe an unexpected decline or failure, often in a person's life, career, or situation.
Example: "After years of success, the company experienced a sudden downfall due to mismanagement and financial issues."
Alternatives: "an abrupt decline" or "a rapid fall".
Many people are wondering if the twins had a hand in the sudden downfall of Zyta Gilowska, deputy prime minister and finance minister, who resigned last month after a new public prosecutor started an investigation into her possible links with the Communists' secret police.
Mubarak's sudden downfall is a testament to the strength of a human desire for dignity.
The New York Times won five Pulitzer Prizes in journalism on Monday, the second-most in its history, for work on subjects as varied as America's wars in Asia, the sudden downfall of a political titan, art from ancient to modern and a history-making presidential campaign.
The sudden downfall puts a disarming end to the saga that Ronconi chose to stage in the historic walls of the Piccolo.
His sudden downfall is a major crisis for the church in Scotland, where most of the country's 750,000 Catholics are of Irish ancestry and live in the central belt between Glasgow and Edinburgh.
Williams' suspension and sudden downfall cast a pall over the Comcast Corp-owned network and its reputation as one of the most authoritative sources for news in the United States.
The sudden downfall came as a surprise to outsiders who had watched Mr. Sokol rise in the business world.
Before his sudden downfall, Ghosn was a respected figure in the global auto industry, having rescued the Japanese automaker from near-bankruptcy and building its sales operations and profits.
Conversely, a sudden heavy downfall can add dramatically to the weight of the surface layer of soil and clay, making it too heavy for the cave beneath to bear.
