The phrase "alarming extent" is correct and usable in written English.
It can be used to describe a situation or issue that is concerning or troubling in its magnitude or severity.
Example: "The pollution in the river has reached an alarming extent, prompting immediate action from local authorities."
Alternatives: "worrying degree" or "concerning level".
To an alarming extent, the college had become narrowly professional, a pit stop where teachers accumulated credits needed for promotion.
Grove makes clear the alarming extent to which both Penelope and John Mortimer, who finally divorced in 1971, viewed their lives and marriage as "material".
Levitt demolishes the notion that Hamas' military, political, and social wings are distinct from one another and catalogues the alarming extent to which the organization's political and social welfare leaders support terror.
It will not tell us much about who Mohammed is, or about the forces that shaped him, which are, to an alarming extent, still at work in the places where he came of age.
"Having been homeless as a child is a predictor of being homeless as an adult, so you're building the next generation here to an alarming extent," Martha Burt, director of social service research at the institute, said yesterday.
The Los Angeles Times surveys the alarming extent of the domestic surveillance network built up under the aegis of the US vice-president, Dick Cheney, since the attacks, while the New York Times analyses Cheney's waning influence.
"That our minister for social services supports this organisation is alarming and the extent of his support needs to be transparent, whether or not it is required to be listed on the register of members' interests," she said.
She tells me that what's especially alarming is the extent to which authorities in both Egypt and Thailand have gone to silence online dissent.
Thus, last December, Ms May made a thunderous speech on immigration that included alarming claims about the extent to which it suppresses wages.
The least original of directors can still earn $2m for a film, and lowly electricians can pull in $200,000 a year.Yet even these alarming numbers hide the extent of the problem: "The talent" is demanding more say over making its films, leading to a spate of over-runs.
There is an alarming discrepancy between the extent of information medical professionals have toward cancer, and the actual knowledge that is passed onto the general population [ 2].
