The phrase "a source of some consternation" is correct and usable in written English.
It can be used to describe something that causes worry, anxiety, or confusion.
Example: "The sudden changes in the project timeline have become a source of some consternation among the team members."
Alternatives: "a cause for concern" or "a reason for anxiety".
The league has not sponsored the Vegas tournament, a source of some consternation to the organizers, especially Marjorie Troum, the tournament's namesake and its director.
The rise of such mega-galleries has been a source of some consternation for contemporary art followers, many of whom like to imagine art as a spiritual escape from corporate culture.
While the beer was popular among New Belgium's co-workers, it also was a source of some consternation because it stepped out of its Belgian tradition, says Bryan Simpson, New Belgium's director of PR who started on the bottling line back in 1997.
This had been a source of consternation for some time.
The flow of information is also a source of consternation to some within Ibrox, not least because talk of a share option is price-sensitive information and ought to be published first to the stock exchange.
Nov. 17, 2018, 2 24 p.m. President Trump's rhetoric on California's wildfires has been a source of consternation for some.
Three-dimensional printers offer a potentially easy way around restrictions and registrations — a source of growing consternation among gun-control advocates and some allies in Congress.
The dissent and confusion within the British Conservative Party must be a source of growing consternation for the Irish government.
"This is a source of considerable consternation," said Camden R. Fine, who attended the White House meeting as president of the Independent Community Bankers, a trade group of 5,000 mostly smaller institutions, many of which are complaining about the repayment requirements.
This inconvenient fact is a source of great consternation to the US government, which has poured billions of dollars into its totally ineffective and highly militaristic war on drugs in Latin America.
While some troop contributors to the Afghan war have been welcomed to NATO or put on track to join the alliance, Georgia remains locked out — a source of particular consternation here at a time when Russia has just annexed part of Ukraine and continues to destabilize eastern Ukraine, according to alliance officials.
