1
as in to anger
to become very angry
naturally I flared up when he insulted me
Synonyms & Similar Words
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Antonyms & Near Antonyms
1
as in flurry
a sudden and usually temporary growth of activity
took medication to prevent a flare-up of her asthma
Synonyms & Similar Words
Antonyms & Near Antonyms
2
as in explosion
a sudden intense expression of strong feeling
there's no need for an angry flare-up, as we'll take care of the problem immediately
Synonyms & Similar Words
Example Sentences
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Recent Examples of flare (up)
Los Angeles Times,
20 June 2026
The lawsuit is the latest flare-up between the city’s powerful teachers union and largest charter school network, and the first of Mayor Mamdani’s administration.
—
Cayla Bamberger,
New York Daily News,
16 June 2026
Another flare-up in tensions in Iran is exacerbating the negative sentiment.
—
Leonie Kidd,
CNBC,
10 June 2026
The American Lung Association echoes that guidance, noting that artificial scents trigger flare-ups for people with asthma and COPD alike.
—
Kansas City Star,
8 June 2026
See All Example Sentences for flare (up)
Noun
The multiday effort has been full of challenges for firefighters with fiery flare-ups.
—
Los Angeles Times,
20 June 2026
The lawsuit is the latest flare-up between the city’s powerful teachers union and largest charter school network, and the first of Mayor Mamdani’s administration.
—
Cayla Bamberger,
New York Daily News,
16 June 2026
Another flare-up in tensions in Iran is exacerbating the negative sentiment.
—
Leonie Kidd,
CNBC,
10 June 2026
The American Lung Association echoes that guidance, noting that artificial scents trigger flare-ups for people with asthma and COPD alike.
—
Kansas City Star,
8 June 2026
See All Example Sentences for flare (up)
Recent Examples of Synonyms for flare (up)
Verb
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Younger, more far left candidates across the nation, from California to Indiana, are running this year to try and oust older, longtime congressional incumbents — angering Democratic Party leaders.
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Not further angering Republicans took precedence over protecting the creative freedom of CBS’ producing partners.
Verb
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The crowd erupted as the ball crunched the back of the net.
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Following the large blaze that erupted at a Boyle Heights cold storage facility, CBS LA Cares is heading to East Los Angeles to host an ice cream social event to hear directly from residents.
Noun
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Minasian’s flurry of moves before and after the 2023 trade deadline seemed chaotic.
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Off a fantastic pass from Kylian Mbappé from the opposite side of the pitch, Ousmane Dembélé unleashed a quick flurry of dribble moves into the right side of the box before burying a goal.
Noun
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In 2013, a truck and train collided in the same area, leading to a chemical explosion.
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The rocket’s explosion took out its only launch pad, LC-36A.
Verb
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The purists were always going to take issue with a Prancing Horse that had an electric powertrain instead of snarling internal combustion engine, but its unorthodox design, courtesy of Jony Ivy’s LoveFrom studio, has received just as much criticism.
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Chopper 2 The crash snarled traffic as the northbound lanes of the turnpike's inner roadway north of Interchange 12 were shut down all morning.
Verb
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Online sales boomed and Nekhala said his business exploded.
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Software engineers have arguably been the first class of workers to see the technology upend their jobs, as programming tools like Anthropic’s Claude Code and OpenAI’s Codex have exploded in popularity.
Noun
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San Francisco real estate agent Butch Haze of Compass has seen tech booms followed by ravenous bursts of homebuying since the first internet gold rush of the late 1990s.
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True to its name, Swift is designed to pivot quickly to capture late-breaking astronomical events such as gamma ray bursts and exploding stars.
Noun
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Bryson Stott's three-run homer highlighted Philadelphia's eight-run outburst in the ninth inning and the Phillies rallied to beat the Washington Nationals 14-9 on Tuesday night.
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The symptoms often look different in dads—anger or sudden outbursts, irritability and substance misuse, for example.
Cite this Entry
“Flare (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/flare%20%28up%29. Accessed 30 Jun. 2026.
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