alarmingly
/əˈlɑɹm.ɪŋ.li/ adverb C2- In an alarming way, frighteningly. · He sneezed alarmingly.
- Causing fear or concern. · Alarmingly, he went into a severe sneezing fit.
- To an extent that causes alarm. · He went into an alarmingly severe sneezing fit.
From the library
They’re getting alarmingly frequent.”
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