as in red lights
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
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of red flags
But the dosage change didn’t immediately raise any red flags.
—
Beth Mole,
ArsTechnica,
2 July 2026
There have been red flags throughout the first three seasons.
—
Joelle Goldstein,
USA Today,
2 July 2026
Members of Forbes Technology Council share red flags that can help users make smarter decisions about which apps deserve their trust.
—
Expert Panel®,
Forbes.com,
23 June 2026
Some behaviors are more subtle—and according to industry professionals, these are the biggest red flags.
—
Joey Skladany,
Travel + Leisure,
14 June 2026
Those red flags include things like surveys showing overconfidence in stocks and technical measures of tightening credit conditions.
—
Jim Edwards,
Fortune,
9 June 2026
The case against The case against McKenna is built on how high those aforementioned red flags are raised within the Leafs organization.
—
Joshua Kloke,
New York Times,
2 June 2026
Take a closer look, and the red flags start to add up.
—
Kurt Knutsson,
FOXNews.com,
31 May 2026
Beth Mole,
ArsTechnica,
2 July 2026
There have been red flags throughout the first three seasons.
—
Joelle Goldstein,
USA Today,
2 July 2026
Members of Forbes Technology Council share red flags that can help users make smarter decisions about which apps deserve their trust.
—
Expert Panel®,
Forbes.com,
23 June 2026
Some behaviors are more subtle—and according to industry professionals, these are the biggest red flags.
—
Joey Skladany,
Travel + Leisure,
14 June 2026
Those red flags include things like surveys showing overconfidence in stocks and technical measures of tightening credit conditions.
—
Jim Edwards,
Fortune,
9 June 2026
The case against The case against McKenna is built on how high those aforementioned red flags are raised within the Leafs organization.
—
Joshua Kloke,
New York Times,
2 June 2026
Take a closer look, and the red flags start to add up.
—
Kurt Knutsson,
FOXNews.com,
31 May 2026
Recent Examples of Synonyms for red flags
Noun
-
Mounted atop the temporary wall were two sets of traffic lights, a pair of side-by-side green lights (currently off) and a set of red lights, now blinking.
-
Both earlier crashes were reportedly linked to drivers running red lights, heightening concerns among local residents about safety at the intersection, the outlet reported.
Noun
-
Managing Potential Warnings Court records from lawsuits shed light on how the manufacturers have managed potential warnings from the field.
-
Evacuation orders affecting about 300 residents in the Oak Leaf Circle area were downgraded to warnings.
Noun
-
Photos of wallets, textiles, sports equipment, photos, jewelry, signs, flags, quilts, stuffies, toys and camp trunks filled the page as strangers banded together in the comments sections, tagging potential rightful owners or friends with any leads.
-
What are the signs that game fatigue may be something more serious?
Cite this Entry
“Red flags.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20flags. Accessed 6 Jul. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
