The phrase 'rather drastically' is correct and usable in written English.
You can use it when you need to express that something has changed significantly or suddenly. Example sentence: The stock market reacted rather drastically to news of the pandemic.
Those recommendations, in some cases, have changed rather drastically.
Just a missing space, but it changes the meaning rather drastically.
As for the Leeds property, it has come down rather drastically to $3.5 million, from $5 million.
That has changed rather drastically in the past year with the surge in the number of development sites being sold.
From across the country comes example after example that developers and builders are cutting the prices of new homes rather drastically.
In addition, Paine, who had never been extremely fastidious about his dress or his appearance, was by many accounts running rather drastically to seed.
"Any policy initiatives should concentrate on nurturing the embryonic buds of growth outside of London, rather than drastically pruning back healthier branches of the market," says Peter Rollings, chief executive of Marsh & Parsons estate agents.
We therefore propose to improve on the original scheme, rather than to drastically change it.
Rather than seek a drastically reduced fee for a player banned for four months for biting the Italy defender Giorgio Chiellini at the World Cup, Sanllehi's opening bid was in the region of £70m.
Rather than take a drastically reduced fee from Showtime, the studios opted to create their own network – to maximize the value of their film output," Richard Greenfield of Pali Research wrote in a report on Monday.
By one of those coincidences that history loves, these men were buried at the moment when the latest statistics show that the percentage of Chileans living in poverty has, for the first time since the end of Augusto Pinochet's dictatorship, gone drastically up rather than down.
