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
This usually results in flaking, cracking and dehydration, causing a flare-up of various skin conditions.
—
Taylor Lane, Flow Space, 20 Nov. 2024
Originally set to take place on July 20, the event was later postponed and rescheduled for November 15 after Tyson suffered an ulcer flare-up on a flight from Miami to Los Angeles in May.
—Anne Marie Lee, CBS News, 18 Nov. 2024
Melton worked over the summer to strengthen his body, particularly his abdominal muscles, to try to prevent back flare-ups.
—Danny Emerman, The Mercury News, 14 Nov. 2024
Sign up Anti-gay 'hunts' The recent flare-up of violence appears to have been linked to homophobic rhetoric by high-profile social media influencers.
—Tess Foley-Cox, theweek, 7 Nov. 2024
See all Example Sentences for flare-up 
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Taylor Lane, Flow Space, 20 Nov. 2024
Originally set to take place on July 20, the event was later postponed and rescheduled for November 15 after Tyson suffered an ulcer flare-up on a flight from Miami to Los Angeles in May.
—Anne Marie Lee, CBS News, 18 Nov. 2024
Melton worked over the summer to strengthen his body, particularly his abdominal muscles, to try to prevent back flare-ups.
—Danny Emerman, The Mercury News, 14 Nov. 2024
Sign up Anti-gay 'hunts' The recent flare-up of violence appears to have been linked to homophobic rhetoric by high-profile social media influencers.
—Tess Foley-Cox, theweek, 7 Nov. 2024
See all Example Sentences for flare-up
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Dictionary Entries Near flare-up
Cite this Entry
“Flare-up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flare-up. Accessed 2 Dec. 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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