convulse

verb

con·​vulse kən-ˈvəls How to pronounce convulse (audio)
convulsed; convulsing
Synonyms of convulsenext

transitive verb

: to shake or agitate violently
especially : to shake with or as if with irregular spasms
was convulsed with laughter

intransitive verb

: to become affected with convulsions
Choose the Right Synonym for convulse

shake, agitate, rock, convulse mean to move up and down or to and fro with some violence.

shake often carries a further implication of a particular purpose.

shake well before using

agitate suggests a violent and prolonged tossing or stirring.

an ocean agitated by storms

rock suggests a swinging or swaying motion resulting from violent impact or upheaval.

the whole city was rocked by the explosion

convulse suggests a violent pulling or wrenching as of a body in a paroxysm.

spectators were convulsed with laughter

Examples of convulse in a Sentence

The patient reacted to the medication and began convulsing. The country was convulsed by war.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Soltani’s precarious fate became one of the most high profile cases internationally during the huge anti-government protests that convulsed Iran last month. Lex Harvey, CNN Money, 2 Feb. 2026 The raid convulsed that country, and the effects still ripple through this oil-rich city, home to major petroleum companies as well as a large Venezuelan community. Frank Langfitt, NPR, 1 Feb. 2026 As the United States convulses with violent raids from emboldened ICE agents, citizens across the country have fought back with block-by-block mutual aid. Los Angeles Times, 30 Jan. 2026 The massacre in Mashhad unfolded on January 8th, after Iranians across the country went out to protest the regime—the culmination of a movement that had convulsed the country for nearly two weeks, following the collapse of the economy. Cora Engelbrecht, New Yorker, 22 Jan. 2026 See All Example Sentences for convulse

Word History

Etymology

Latin convulsus, past participle of convellere to pluck up, convulse, from com- + vellere to pluck — more at vulnerable

First Known Use

1643, in the meaning defined at transitive sense

Time Traveler
The first known use of convulse was in 1643

Browse Nearby Words

Cite this Entry

“Convulse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/convulse. Accessed 6 Feb. 2026.

Kids Definition

convulse

verb
con·​vulse kən-ˈvəls How to pronounce convulse (audio)
convulsed; convulsing
: to shake violently
especially : to shake with usually uncontrolled jerky movements
convulsed with laughter

Medical Definition

convulse

verb
con·​vulse kən-ˈvəls How to pronounce convulse (audio)
convulsed; convulsing

transitive verb

: to shake or agitate violently
especially : to shake or cause to shake with or as if with irregular spasms
was convulsed with pain

intransitive verb

: to become affected with convulsions
some children will inevitably convulse when fever reaches a high pointH. R. Litchfield & L. H. Dembo

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