Synonyms of flare (up)

flare (up) 1 of 2

verb

1

as in to anger

to become very angry

naturally I flared up when he insulted me

Synonyms & Similar Words

• anger
• snarl
• fly into a rage
• hit the roof
• hit the ceiling
• blow up
• fly off the handle
• snap
• have a fit
• flip (out)
• go ballistic
• blow a gasket
• glare
• forget oneself
• explode
• blow one's top
• blow one's stack
• lose one's temper
• blow one's cool
• storm
• lose one's cool
• steam
• tee off
• flare (out)
• rage
• flash
• sputter
• rant
• vituperate
• rave
• fulminate
• foam
• warm
• bristle
• vent
• burst
• glower
• fume
• smolder
• seethe
• burn
• sizzle
• inflame
• madden

Antonyms & Near Antonyms

• calm (down)
• cool (off or down)
• relax
• simmer down
• quiet (down)
• chill out
• hush

2

as in to erupt

to develop suddenly and violently

my allergies always flare up in the spring

Synonyms & Similar Words

• erupt
• explode
• burst (forth)
• blaze (up)
• break out
• flame
• swell
• rocket
• mount
• proliferate
• skyrocket
• multiply
• touch off
• detonate
• wax
• blow up
• snowball
• mushroom
• balloon
• burgeon

flare-up

2 of 2

noun

ˈfler-ˌəp 

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

• flurry
• burst
• outburst
• outbreak
• flare
• eruption
• surge
• spurt
• flutter
• flicker
• recurrence
• increase
• flash
• renewal
• explosion
• boost
• flood
• upswing
• upturn
• recrudescence
• spree
• epidemic
• rush
• pickup
• binge
• commotion
• volley
• paroxysm
• spate
• deluge
• furor
• uproar
• jag

Antonyms & Near Antonyms

• slump
• calm
• doldrums

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

• explosion
• outburst
• eruption
• burst
• blaze
• flare
• flash
• spasm
• gust
• gale
• storm
• flush
• agony
• frenzy
• fit
• paroxysm
• ebullition
• rage
• gush
• transport
• tantrum
• ecstasy
• rapture
• blowup
• delirium
• firestorm
• furor
• grouch

Example Sentences

Recent Examples of flare (up)

Noun

The exchange is the latest flare-up in a yearslong battle between the owners of Maryland’s most famous legacy news outlet and its Democratic governor. — Max Tani, semafor.com, 15 July 2026

From dealing with symptom flare-ups and unrelenting fatigue to following strict medication schedules, managing a health condition that no one in your circle relates to can be incredibly isolating. — Katie Camero, Condé Nast Traveler, 15 July 2026

The rest are willing to wait for signs that inflation may resume falling as gas prices fall, though the minutes predate the recent flare-up of violence in the Middle East. — Christopher Rugaber, Los Angeles Times, 14 July 2026

Oil prices eased on Friday but remained on track for weekly gains of 5% after the flare-up. — Reuters, NBC news, 10 July 2026