Synonyms of simultaneous

simultaneous

adjective

ˌsī-məl-ˈtā-nē-əs 

as in concurrent

existing or occurring at the same period of time

a simultaneous release of the movie and its soundtrack on CD

Synonyms & Similar Words

• concurrent
• synchronous
• synchronic
• coincident
• coincidental
• contemporaneous
• contemporary
• coeval
• accompanying
• concomitant
• coextensive
• coterminous
• coetaneous
• coexistent
• incident
• coexisting
• attending
• attendant

Antonyms & Near Antonyms

• asynchronous
• nonsimultaneous
• nonsynchronous
• noncontemporary

Synonym Chooser

How does the adjective simultaneous differ from other similar words?

Some common synonyms of simultaneous are coeval, coincident, contemporaneous, contemporary, and synchronous. While all these words mean "existing or occurring at the same time," simultaneous implies correspondence in a moment of time.

the two shots were simultaneous

When can coeval be used instead of simultaneous?

Although the words coeval and simultaneous have much in common, coeval refers usually to periods, ages, eras, eons.

two stars thought to be coeval

In what contexts can coincident take the place of simultaneous?

In some situations, the words coincident and simultaneous are roughly equivalent. However, coincident is applied to events and may be used in order to avoid implication of causal relationship.

the end of World War II was coincident with a great vintage year

When is it sensible to use contemporaneous instead of simultaneous?

The words contemporaneous and simultaneous are synonyms, but do differ in nuance. Specifically, contemporaneous is more often applied to events than to people.

contemporaneous accounts of the kidnapping

Where would contemporary be a reasonable alternative to simultaneous?

The meanings of contemporary and simultaneous largely overlap; however, contemporary is likely to apply to people and what relates to them.

Abraham Lincoln was contemporary with Charles Darwin

When might synchronous be a better fit than simultaneous?

The synonyms synchronous and simultaneous are sometimes interchangeable, but synchronous implies exact correspondence in time and especially in periodic intervals.

synchronous timepieces

Examples of simultaneous in a Sentence

Recent Examples on the Web

After a simultaneous pin situation, the referee ruled that DIY’s Ciampa was the legal man, giving the Street Profits the short end of the stick. —Brian Mazique, Forbes, 19 Oct. 2024

This helped immerse the actors in an exact replica of the environment, through doorways and up and down stairs, surrounded by lots of simultaneous mics and others built into the set. —Bill Desowitz, IndieWire, 15 Oct. 2024

One router covers up to 2,500 square feet with speeds of up to 4.3 gigabits per second and can easily handle more than 200 simultaneous connections. —Jennifer Pattison Tuohy, The Verge, 9 Oct. 2024

The investigations by Foxx, the Education Committee and simultaneous investigations by Ways and Means Committee Chairman Jason Smith, R-Mo., prompted House Speaker Mike Johnson to take up the issue in the spring. —Arthur Jones Ii, ABC News, 7 Oct. 2024