as in watch
the state of being constantly attentive and responsive to signs of opportunity, activity, or danger
the paparazzi were on red alert for sightings of the hot new Hollywood couple
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of red alert
Losing Jackson for any more games would certainly put the franchise on a red alert situation, as Cooper Rush did not spark much confidence in his starts with Jackson out.
—
James Brizuela, MSNBC Newsweek, 21 Nov. 2025
On Saturday, the South and Grand’Anse regions of Haiti were both upgraded to red alerts by the National Disaster Risk Management System.
—David J. Neal, Miami Herald, 26 Oct. 2025
The art community is on red alert.
—Lionel Laurent, Twin Cities, 24 Oct. 2025
The Sooners’ struggles of the past three years were a red alert that something had to change both on and off the field if this blue blood was going to stay one.
—Chris Vannini, New York Times, 9 Oct. 2025
See All Example Sentences for red alert
James Brizuela, MSNBC Newsweek, 21 Nov. 2025
On Saturday, the South and Grand’Anse regions of Haiti were both upgraded to red alerts by the National Disaster Risk Management System.
—David J. Neal, Miami Herald, 26 Oct. 2025
The art community is on red alert.
—Lionel Laurent, Twin Cities, 24 Oct. 2025
The Sooners’ struggles of the past three years were a red alert that something had to change both on and off the field if this blue blood was going to stay one.
—Chris Vannini, New York Times, 9 Oct. 2025
See All Example Sentences for red alert
Recent Examples of Synonyms for red alert
Noun
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Boylan, who was a licensed captain for 34 years, failed to appoint an overnight roving watch on the night of the fire — ignoring the Certificate of Inspection requirements that were hanging in his wheelhouse — and did not institute adequate fire safety drills.—
Richard Winton,
Los Angeles Times,
23 Apr. 2026
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Here’s what to know watch now Choose CNBC as your preferred source on Google and never miss a moment from the most trusted name in business news.—
Kate Rooney,Jordan Novet,
CNBC,
23 Apr. 2026
Noun
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A lot of this involves watchfulness—noticing what the preferring mind (that is, the editing mind) as put in place, and accepting it, and building upon it.—
Literary Hub,
Literary Hub,
27 Jan. 2026
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With calm resolve, the United States and the European Union have each made decisions in recent days showing a firm watchfulness against big-power aggression.—
The Christian Science Monitor,
Christian Science Monitor,
19 Dec. 2025
Noun
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Pilots on both Southwest planes responded to onboard alerts, the FAA said.—
Ayesha Ali,
ABC News,
21 Apr. 2026
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The state with the second-highest number of alerts, California, had just 16.—
Andrea Lucia,
CBS News,
21 Apr. 2026
Noun
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More evidence is needed to determine if smelling lemon water can significantly increase energy and alertness.—
Carrie Madormo,
Verywell Health,
17 Apr. 2026
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Dogs bred for alertness or reactivity may be more attuned to sound, though this isn’t a hard-and-fast rule.—
Jamie Cuccinelli,
Martha Stewart,
7 Apr. 2026
Noun
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But that requires user vigilance — and not being careful can have consequences.—
ABC News,
ABC News,
15 Apr. 2026
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In summary, when facing the threat of lightning, preparedness and vigilance are your best allies.—
Southern California Weather Report,
Oc Register,
13 Apr. 2026
Cite this Entry
“Red alert.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20alert. Accessed 27 Apr. 2026.
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