The phrase "alarming look" is correct and usable in written English.
It can be used to describe a facial expression that conveys fear, concern, or surprise, often in response to a troubling situation.
Example: "When she heard the news, her face took on an alarming look that made everyone in the room uneasy."
Alternatives: "disturbing expression" or "frightening gaze."
This triad of data sets allowed the researchers to characterize the multi-dimensional household responses presented in the working paper, Destruction, Disinvestment and Death: Economic and Human Losses Following Environmental Disaster" and provide an alarming look at climate adaptation and mitigation practices.
In the faces of these photographic subjects we behold an alarming look of knowledge without consent, and the formal elements associated with this type of portrait — the rigid, head-on stare, the non-professional lighting and institutional accouterment — are charged with the candid photo's shock of spontaneous revelation.
For an alarming look at the situation from ground level, check out the recent Greenpeace Tiger's Eye Tour, which exposed ongoing clearance of rainforests inside APP concessions in Sumatra.
The Internet spawns ever more inventively alarming looks at foreign tourism, like "The Vice Guide to Travel" on VBS.TV, which specializes in unorthodox forms of tourism.
Except while Candid Camera was a charming and delightful glimpse into human nature, The Yes Men Fix the World is an astounding and alarming full look into corporate nature.
As the undergraduate, Paul Rhys is perpetually startled and eager he is an extremely intense and extraordinarily open actor, sometimes so intense and open as to be alarming he can look as if his face is about to melt.
They look alarming but have an appealing flavour.
Sometimes behaviors that look alarming, such as repeated pecking, do not result in serious injury.
What is both interesting and alarming is to look up the news coverage of the original dedication of the bridge back in 1931.
There were other sensible observations, pertinent today when hemlines are tumbling down, designers are accused of being dictators, and clothes have an alarming tendency to look alike.
The problem with Russia's budget is not so much that its figures look alarming (such as the deficit of 9% of GDP proposed at the start of this year) but that they are even more fictitious than other Russian statistics.
