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
Reddit users warned the woman that her partner’s behavior raised red flags.
—
Abigail Adams, People.com, 14 Aug. 2025
Not every toxic relationship announces itself with obvious red flags.
—Jenna Ryu, SELF, 14 Aug. 2025
Homeowners, meanwhile, were raising red flags about the potential cost of complying with Zone Zero.
—Bloomberg, Mercury News, 12 Aug. 2025
A couple, who had gone to the rescue to adopt him, saw a glaring red flag on his file.
—Maria Morava, MSNBC Newsweek, 11 Aug. 2025
See All Example Sentences for red flag
Abigail Adams, People.com, 14 Aug. 2025
Not every toxic relationship announces itself with obvious red flags.
—Jenna Ryu, SELF, 14 Aug. 2025
Homeowners, meanwhile, were raising red flags about the potential cost of complying with Zone Zero.
—Bloomberg, Mercury News, 12 Aug. 2025
A couple, who had gone to the rescue to adopt him, saw a glaring red flag on his file.
—Maria Morava, MSNBC Newsweek, 11 Aug. 2025
See All Example Sentences for red flag
Recent Examples of Synonyms for red flag
Noun
-
The driver of the Camry allegedly failed to stop at the red light and struck the pedestrian, throwing the person to the ground, Gonzalez said.—
Robert A. Cronkleton,
Kansas City Star,
17 Aug. 2025
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Switching your phone to a red light filter may help, but avoiding screens before bed is best.—
Julia Ries,
Health,
12 Aug. 2025
Noun
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Schmidt and others in the public health community recommend a solution called plain packaging, which strips labels to the brand name, product information and health warnings prominently displayed.—
Amelia Wu,
Sacbee.com,
25 Aug. 2025
-
The warning was released on Sunday at 4:27 p.m., and the last update concerning this incident was provided on Sunday at 6:15 p.m.—
Kansas City Star,
Kansas City Star,
25 Aug. 2025
Noun
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Another sign something was wrong: a childhood stutter reemerged.—
Bethy Squires,
Vulture,
27 Aug. 2025
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There’s no sign administration officials, including Terrell, will let up in their campaign against higher education.—
Peter Elkind,
ProPublica,
27 Aug. 2025
Cite this Entry
“Red flag.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20flag. Accessed 1 Sep. 2025.
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