Synonyms of red flags

red flags

noun

plural of red flag

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

• red lights
• warnings
• signs
• wake-up calls
• tocsins
• indicators
• signals
• cautions
• tip-offs
• notifications
• premonitions
• buoys
• omens
• portents
• declarations
• presages
• announcements
• notices
• foretokens
• foretastes
• knells

Antonyms & Near Antonyms

• all clears

Example Sentences

Recent Examples of red flags

Yet without proper context, they can easily be seen as red flags. — Artem Lalaiants, Forbes.com, 6 Nov. 2026

In video interviews in general, some red flags might include the person moving unusually slowly or not responding to one of your questions, or their visual skipping a beat, Garber says. — Sarah Jackson, CNBC, 6 Nov. 2026

Astrologer Renee Watt urges taking stock of where prior relationships unraveled and what red flags were brushed aside. — Lisa Stardust, Vogue, 5 Nov. 2026

That investigation concluded that there were no signs of diversion and that Megaspeed has raised no red flags as a customer, Nvidia spokesperson John Rizzo told NYT. — Ashley Belanger, ArsTechnica, 29 Oct. 2026

The poor decision-making, surprisingly shaky accuracy, inability to elevate a weak supporting cast and difficulty moving through progressions quickly are all serious red flags. — Barry Jackson, Miami Herald, 21 Oct. 2026

Also last year, OpenAI CEO Sam Altman’s admission that an AI bubble exists and Michael Burry’s bearish bets represented more red flags. — Jason Ma, Fortune, 17 Oct. 2026

Francis seemed fine — at first To those who knew and loved her, Francis appeared fine and never raised any red flags. — Thomas Tracy, New York Daily News, 17 Oct. 2026

But Craig Holman, a lobbyist with the government accountability nonprofit advocacy group Public Citizen, told the AP that Marshall’s actions raised ethical red flags. — Matthew Kelly, Kansas City Star, 16 Oct. 2026