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

• simultaneously adverb
• simultaneity noun
• simultaneousness 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

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.

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The divide is rooted in the unusual state of the economy: simultaneous upward pressure on inflation and stagnant job growth, a combination sometimes called stagflation.

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In reality, cells perform thousands of simultaneous chemical processes that must share finite resources.

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“Its flight deck layout appears to limit its ability to carry simultaneous aircraft launches and recoveries so it probably won’t be able to generate as many aircraft missions over a given period.”

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Gold and the stock market have been enjoying simultaneous bull runs, perhaps pointing to conflicted sentiment among investors.

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Related Words

• concurrent