The phrase "abrupt drop" is correct and usable in written English.
It can be used to describe a sudden and steep decrease in something, such as prices, temperatures, or performance levels.
Example: "The stock market experienced an abrupt drop after the announcement of the new regulations."
Alternatives: "sudden decline" or "sharp decrease".
Some surveys since the Brexit vote did indeed pick up an abrupt drop in consumer confidence.
He conceded, however, that the abrupt drop in the growth rate of the trees was "discouraging".
In nearly all instances, it ends at its seaward edge with an abrupt drop called the shelf break.
"I don't take the cold too well," said the 61-year-old, adjusting to the abrupt drop in temperature.
WHEN the Swiss National Bank (SNB) intervened to weaken its currency in 2011, analysts called the subsequent abrupt drop in the franc's value a "20-standard-deviation move".
Revenues from its North American retail operations plunged by 26%, thanks in part to an abrupt drop in the refinancing of mortgages due to rising interest rates.
After an abrupt drop, the ground levelled off into a tunnel — too low to stand up in, but not so low that we had to crawl.
Extending southeastward from Mount Tai Mo, the Kowloon Peak attains an elevation of 1,975 feet (602 metres), but there is an abrupt drop to about 650 feet (198 metres) at Devil's Peak.
The Karachi exchange closed for four months in late 2008 after an abrupt drop in prices; more recently, it has faced allegations by the news media of insider trading and cronyism.
Jonathan Miller, an appraiser who prepared the data for Prudential Douglas Elliman, said that the prices of apartments in contract declined 20percentt between August and December last year, with an abrupt drop in late September and early October.
"Irritable male syndrome" - caused by an abrupt drop in testosterone levels - afflicts men of all ages and is chiefly due to stress, a researcher at the Human Reproductive Sciernces Unit in Edinburgh has found.
