IPA: /əˈlɑːrmɪŋli/
KK: /əˈlɑrmɪŋli/
In a way that causes worry or fear; something that is concerning or frightening.
The situation is alarmingly out of control, and immediate action is required.
Alarmingly → It is formed from "alarm" (from Old French *alarme*, meaning a call to arms or a warning) and "-ingly" (a suffix used to form adverbs). The word "alarmingly" means in a manner that causes alarm or concern.
Think of an 'alarm' as a warning signal, and remember that 'alarmingly' describes something done in a way that causes concern or fear.