in a heartbeat

idiom

Definition of in a heartbeat

US, informal
: in a very brief time : without any delay or hesitation Even though the job was difficult, he says he'd agree to do it again in a heartbeat.

Learn More About in a heartbeat

Dictionary Entries Near in a heartbeat

Inagua

in a heartbeat

in a huff

See More Nearby Entries 

Statistics for in a heartbeat

Cite this Entry

“In a heartbeat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20a%20heartbeat. Accessed 24 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon
Seen & Heard
People are talking about

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!