simultaneous

[sahy-muhl-tey-nee-uhs, sim-uhl-]

adjective

1. existing, occurring, or operating at the same time; concurrent: simultaneous translation.

   simultaneous movements;

   simultaneous translation.

   Synonyms: coincident, synchronous

simultaneous

/ ˌsaɪməltəˈniːɪtɪ, ˌsɪməltəˈniːɪtɪ, ˌsaɪməlˈteɪnɪəs, ˌsɪməlˈteɪnɪəs /

adjective

1. occurring, existing, or operating at the same time; concurrent

noun

1. Sometimes shortened to: simul. chess a display in which one player plays a number of opponents at once, walking from board to board

Other Word Forms

• simultaneousness noun
• simultaneously adverb
• simultaneity noun
• nonsimultaneous adjective
• unsimultaneous adjective
• unsimultaneousness noun

Word History and Origins

Origin of simultaneous¹

First recorded in 1650–60; from Latin simul “together” ( similar ) + (instan)taneous

Word History and Origins

Origin of simultaneous¹

C17: formed on the model of _{instantaneous} from Latin simul at the same time, together

Example Sentences

Device support: Most users today own more than a single device, so select a provider that supports multiple simultaneous connections.

Read more on Salon

This art’s simultaneous appeal to the eye and the hand, formally lean and visually uncluttered, yields a strangely conceptual punch.

Read more on Los Angeles Times

Ackman, long a fan of creative financial maneuvers, is now pursuing what would amount to simultaneous offerings of both, the people said.

Read more on The Wall Street Journal

He says Nvidia is now benefiting from three simultaneous computing shifts, changes that go beyond any one quarter of results.

Read more on Barron's

Now, suddenly, he was handed a microphone and enlisted as a simultaneous translator for Karel Lamač’s uproarious Jazz Age comedy about a proper Viennese girl who goes wild as a flapper.

Read more on The Wall Street Journal

Related Words

• concurrent