The phrase "a severe deterioration" is correct and usable in written English.
It can be used to describe a significant decline in quality, condition, or performance of something.
Example: "The report indicated a severe deterioration in the infrastructure, leading to safety concerns for the residents."
Alternatives: "a significant decline" or "a drastic worsening".
This suggests circa £52m for second half – a severe deterioration.
A new development, however, is a severe deterioration in the political backdrop, which threatens the adjustments the economy badly needs".
The doctors said were he to be separated from his wife and children again, he risked a severe deterioration of his already fragile mental health.
Mr. Milunovich said that these tax benefits helped mask a severe deterioration in technology companies' cash flows that began three years ago.
Recent studies have shown that strength values similar to those observed in nanocrystalline metals can be obtained without a severe deterioration in ductility.
The news came via a report on Ballesteros's Web site that said, "The Ballesteros family informs that Seve's neurological condition has suffered a severe deterioration".
It comes days after a senior GP reported a recent "severe deterioration in A&E performance", in a letter leaked to the BBC.
In a leaked letter, Dr Christa Beesley said there had been a recent "severe deterioration in A&E performance" at the Royal Sussex County Hospital.
The substantial reduction in compressive strength of the heat-damaged columns was accompanied by a more severe deterioration in their axial stiffness of about 70%.
Further studies with larger samples of patients are required to confirm our results, to support possible differences in frequency as compared with other painful conditions than FMS, as well as to evaluate the potential impact of this mild impairment of the cognitive function on the patient's daily functionality and/or on the risk of progression to a more severe deterioration.
"In the past several days there has been a rapid and severe deterioration in the market for U.S. government agency AAA-rated residential mortgage-backed securities," Carlyle Capital said in a statement.
