as in red light
something that tells of approaching danger or risk
the résumé she accidentally left on the office printer was a red flag that she was planning to quit
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Recent Examples of red flag
Unlike New Mexico and Texas, Colorado's most severe conditions are expected Monday rather than today, with red flag warnings issued for Monday from noon to 9 p.m. MDT in Pueblo, Huerfano, Las Animas, Otero, and other counties.
—
Ron Estes, MSNBC Newsweek, 30 Mar. 2025
Understanding the gravity of a red flag warning and adhering to these precautions is paramount in averting wildfires during these perilous conditions.
—Nc Weather Bot, Charlotte Observer, 28 Mar. 2025
Regardless of intent, though, moving too fast is still a red flag to be wary of.
—Jenna Ryu, SELF, 28 Mar. 2025
Perhaps that more than anything was a red flag for Briere, considering some of the coach’s missteps a year ago.
—Kevin Kurz, New York Times, 27 Mar. 2025
See All Example Sentences for red flag
Ron Estes, MSNBC Newsweek, 30 Mar. 2025
Understanding the gravity of a red flag warning and adhering to these precautions is paramount in averting wildfires during these perilous conditions.
—Nc Weather Bot, Charlotte Observer, 28 Mar. 2025
Regardless of intent, though, moving too fast is still a red flag to be wary of.
—Jenna Ryu, SELF, 28 Mar. 2025
Perhaps that more than anything was a red flag for Briere, considering some of the coach’s missteps a year ago.
—Kevin Kurz, New York Times, 27 Mar. 2025
See All Example Sentences for red flag
Recent Examples of Synonyms for red flag
Noun
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State police said the driver later allegedly blew through a red light at the intersection of Kelly Road and Route 83 before continuing north on Route 83, the warrant affidavits said.—
Justin Muszynski,
Hartford Courant,
27 Mar. 2025
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Bosworth reveals that she's been obsessed with red light therapy and has gotten her husband into the trend.—
Michelle Lee,
People.com,
24 Mar. 2025
Noun
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After Trump's announcement on Wednesday, some Wall Street firms voiced warnings about a possible recession.—
Max Zahn,
ABC News,
3 Apr. 2025
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Margaret Atwood’s dystopian allegorical novel didn’t over-explain the U.S.’ descent into fascist theocracy and thus left itself open to interpretation — so open that even American conservatives were able to claim it as a warning about Muslim fundamentalism.—
Daniel Fienberg,
HollywoodReporter,
3 Apr. 2025
Noun
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The peaceful protesters waved signs targeting Trump and Musk.—
Sarah D. Wire,
USA Today,
5 Apr. 2025
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In addition to taking medical history, your healthcare provider may perform the following exams: Physical exam: The provider will assess your hips, legs, and feet for signs of tightness or injury and measure your legs' range of motion.—
Mark Gurarie,
Health,
5 Apr. 2025
Cite this Entry
“Red flag.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20flag. Accessed 15 Apr. 2025.
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