1
: a sudden outburst or intensification
a flare-up of hostilities
2
: a sudden bursting (as of a smoldering fire) into flame or light
a danger of flare-ups
3
: a sudden appearance or worsening of the symptoms of a disease or condition
an asthmatic flare-up
Synonyms
Examples of flare-up in a Sentence
took medication to prevent a flare-up of her asthma
there's no need for an angry flare-up, as we'll take care of the problem immediately
Recent Examples on the Web
However, if a person is only experiencing a moderate flare-up, walking for two to five minutes can help ease the pain by increasing blood flow and reducing stiffness.
—
Stephanie Brown, Verywell Health, 2 July 2024
That could prove costly to their reputations if such policy needs to be reversed amid a flare-up of inflation again, the report said.
—Prarthana Prakash, Fortune, 30 June 2024
But the war between Hamas and Israel has once again shown how that turn can be difficult when there are flare-ups in the Middle East.
—Abc News, ABC News, 27 June 2024
Although there’s no drug that can cure ulcerative colitis, a variety of medications can reduce symptom flare-ups and help patients achieve and maintain periods of clinical remission.
—Lisa Rapaport, EverydayHealth.com, 20 June 2024
See all Example Sentences for flare-up 
Stephanie Brown, Verywell Health, 2 July 2024
That could prove costly to their reputations if such policy needs to be reversed amid a flare-up of inflation again, the report said.
—Prarthana Prakash, Fortune, 30 June 2024
But the war between Hamas and Israel has once again shown how that turn can be difficult when there are flare-ups in the Middle East.
—Abc News, ABC News, 27 June 2024
Although there’s no drug that can cure ulcerative colitis, a variety of medications can reduce symptom flare-ups and help patients achieve and maintain periods of clinical remission.
—Lisa Rapaport, EverydayHealth.com, 20 June 2024
See all Example Sentences for flare-up
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'flare-up.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Flare-up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flare-up. Accessed 8 Jul. 2024.
Copy CitationMedical Definition
flare-up
noun
: a sudden appearance or worsening of the symptoms of a disease or condition
an asthmatic flare-up
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