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Synonyms

alarming

American  
[uh-lahr-ming] / əˈlɑr mɪŋ /

adjective

  1. causing alarm or fear.

    an alarming case of pneumonia; an alarming lack of respect.


Other Word Forms

Etymology

Origin of alarming

First recorded in 1670–80; alarm + -ing 2

Explanation

Something that's alarming is disturbing or upsetting. It can be alarming when you hear a sudden, loud crash of thunder. The idea of climate change is very alarming to many people, and the sound of a police car's siren is alarming when you're driving. Things that are alarming grab your attention, and either frighten you or at least unsettle you. The adjective alarming comes from alarm, via the Old French alarme, which is rooted in the Italian interjection all'arme, a rally or warning cry, "to arms!"

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Vocabulary lists containing alarming

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Alarming her and neighbors are rumors that the legal owners of their homes plan to claim their property.

From Los Angeles Times • Feb. 15, 2026

Alarming research into BPA spurred numerous manufacturers of goods with plastics in them to advertise them as "BPA-free."

From Salon • Apr. 28, 2023

Alarming warnings started coming through on every officer’s official email in the form of what were called BOLOs — alerts about people to “be on the lookout” for.

From New York Times • Jan. 4, 2022

Also complicating the picture: Alarming hospitalization figures can be misleading because they sometimes include all children who have tested positive for the coronavirus upon admission.

From Seattle Times • Dec. 28, 2021

Alarming evidence has recently come to light about Harry Potter’s strange behavior, which casts doubts upon his suitability to compete in a demanding competition like the Triwizard Tournament, or even to attend Hogwarts School.

From "Harry Potter And The Goblet Of Fire" by J. K. Rowling

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