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See more synonyms for flareup on Thesaurus.com
  1. a sudden flaring up of flame or light.
  2. a sudden outburst or intensification, as of anger or tensions.
  3. a sudden outbreak of violence, disease, or any other condition thought to be quelled, checked, or inactive.
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Origin of flareup

First recorded in 1830–40; noun use of verb phrase flare up
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Examples from the Web for flareup

Historical Examples

  • In fact, I got the distinct impression that he showed no flareup, no animosity when Connally's name was mentioned.

    Warren Commission (7 of 26): Hearings Vol. VII (of 15)

    The President's Commission on the Assassination of President Kennedy

  • Flareup had, as usual, lighted his weed, and was sending the smoke into the face of May Sandon.