asyn·​chro·​nous | \ (ˌ)ā-ˈsiŋ-krə-nəs How to pronounce asynchronous (audio) , -ˈsin-\

Definition of asynchronous

1 : not simultaneous or concurrent in time : not synchronous asynchronous sound
2 : of, used in, or being digital (see digital sense 4) communication (as between computers) in which there is no timing requirement for transmission and in which the start of each character is individually signaled by the transmitting device

Keep scrolling for more

Other Words from asynchronous

asynchronously adverb

Examples of asynchronous in a Sentence

Recent Examples on the Web

Unlike chat apps, which interrupt you throughout the day, or social media feeds, which are sorted and ranked by algorithms, email is asynchronous and user controlled. Kevin Roose, New York Times, "Would You Pay $30 a Month to Check Your Email?," 27 June 2019 Furthermore, the asynchronous irregular states showed power-law behavior when researchers measured the neuron activity in just the right way. Jennifer Ouellette, Quanta Magazine, "Brains May Teeter Near Their Tipping Point," 14 June 2018 The comparison of asynchronous voices with similar intent of delivery and tonal quality proves to be a genuinely exciting approach. Wesley Stace, WSJ, "‘Voices’ Review: Singers in the Key of Life," 20 Dec. 2018 Instead of an internal combustion engine, each axle sports its own asynchronous electric motor, each of which features a cooling lance running through it. Jonathan M. Gitlin, Ars Technica, "We’ve driven Audi’s first proper electric car, the 2019 e-tron SUV," 7 Dec. 2018 And my belief is that where work happens is actually in your inbox, and is actually asynchronous. Casey Newton, The Verge, "Slack didn’t kill email — and it might have made it stronger," 4 July 2018 Texting is fun, lightly asynchronous, and possible to do with many people simultaneously. Alexis C. Madrigal, The Atlantic, "No One Picks Up the Phone Anymore," 31 May 2018 And in particular, the design of most online classes is asynchronous. NBC News, "Online class instructors more likely to respond to white male students, study finds," 13 Mar. 2018 AlternaVisit specializes in asynchronous telemedicine - where technology is employed to expand access to healthcare and doesn't require the patient and physician to be in the same place at the same time. William Thornton,, "AlternaVisit's Tom McDougal talks the future of telemedicine," 1 Aug. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'asynchronous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of asynchronous

1748, in the meaning defined at sense 1

History and Etymology for asynchronous

see synchronous

Keep scrolling for more

Learn More about asynchronous

Statistics for asynchronous

Last Updated

9 Jul 2019

Look-up Popularity

Time Traveler for asynchronous

The first known use of asynchronous was in 1748

See more words from the same year

Comments on asynchronous

What made you want to look up asynchronous? Please tell us where you read or heard it (including the quote, if possible).


providing supplementary assistance

Get Word of the Day daily email!

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.

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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