10
burn(verb, blow, feelings, flash, glow)
10
seethe(verb, rise, rage, feelings, excited)
9
erupt(verb, give, collapse, excited, blast)
8
blow up(verb, expression, phrasal verb, rise, collapse)
8
explode(verb, blow, rage, feelings, excited)
8
rage(noun, verb, passion, rise, swell)
7
flare(noun, verb, attack, rise, blow)
6
anger(noun, verb, passion, dispute, temper)
6
blow a gasket(verb, expression, idiom, rage, feelings)
6
bristle(verb, upset, rise, feelings, excited)
6
burst(noun, verb, collapse, excited, blast)
6
flame(verb, burn, glow, blaze, kindle)
6
fume(verb, rise, rage, feelings, excited)
5
blaze(verb, collapse, excited, blast, burn)
5
go off(verb, expression, phrasal verb, excited, blast)
5
irrupt
5
spark(verb, glow, blaze, burst into flame)
4
boil(verb, rise, rage, excited, appear)
4
boil over(verb, expression, phrasal verb, rise, swell)
4
fire(noun, verb, passion, anger, rage)
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APASmart Define. (2015). flare up thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/flare_up/thesaurus/synonyms
ChicagoSmart Define. 2015. "flare up thesaurus" https://smartdefine.org/flare_up/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, flare up thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/flare_up/thesaurus/synonyms>.
MLASmart Define. "flare up thesaurus" 23 December 2015. Web. 20 September 2026. <https://smartdefine.org/flare_up/thesaurus/synonyms>