alarmed

B1 · Intermediate

adj. feeling worried, anxious, or scared because of something unexpected or dangerous.

adj. experiencing a sudden sense of fear, anxiety, or apprehension in response to a perceived threat or unexpected event.

“Local residents were alarmed by the news of the chemical spill in the river.”

“The medical staff grew increasingly alarmed as the patient's vital signs continued to fluctuate despite the administration of emergency treatment.”