The phrase "deemed challenging" is grammatically correct and can be used in written English.
It is typically used to describe something that is considered difficult or demanding. Example: The math problem was deemed challenging by the teacher, but the student was able to solve it with ease.
That something was the first public commitment by NHS England chief executive Simon Stevens to close hospitals that have become a kind of home, albeit a highly questionable one, to some 3,000 people with learning disabilities or autism whose behaviour is deemed "challenging".
We observed significant improvements in the residents' understanding of the essential elements of effective communication and their comfort levels in selected clinical scenarios that were deemed challenging.
In this approach, certain types of art and emotion — namely those deemed challenging or dark — are more worthy of attention than others every bit as universal and necessary but better described as fun or bright.
Essex's Olympic mountain bike course has been deemed challenging enough by riders at the test event - although changes will be made for next year.
Determining the dominant species based solely on ALS data is deemed challenging, but important in areas where the species composition is otherwise seemingly homogeneous except being dominated by certain species.
Determining the dominant species based solely on ALS data is deemed challenging, but important in particular in areas where the species composition is otherwise seemingly homogeneous except being dominated by certain species.
The government usually blocks access to Web sites that it deems challenge the official line.
Often, the sheer brilliance of Prokofiev's virtuosic piano writing is deemed challenge enough for any mere 10-fingered exponent, without having to worry about niceties of interpretation.
For requiring the use of Doppler, CO measurement may be deemed technically challenging for the nonspecialist physician.
"It was deemed demographically challenged as a feature; they were clearly concerned about its appeal to younger audiences," said Mr. Mark, one of the film's executive producers; the others are Ilene Amy Berg, Ms. Fisher and Ms. Pope.
According to the Global Media Monitoring Project 2015 [pdf], women are the focus of only 10% of news stories, comprise just 20% of experts or spokespeople interviewed, and a mere 4% of news stories are deemed to challenge gender stereotypes.
