SIMULTANEOUS Synonyms: 22 Similar and Opposite Words

Q: 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

Q: 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

Q: 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

Q: 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

Q: 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

Q: 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

simultaneous

adjective

ˌsī-məl-ˈtā-nē-əs

Definition of simultaneous next

as in concurrent

existing or occurring at the same period of time a simultaneous release of the movie and its soundtrack on CD

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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

Example Sentences

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Recent Examples of simultaneous By processes that no one has fully defined—simultaneous evolution, or international sales of plants and bulbs, or fungal spores carried on the wind—lethal azole-resistant Aspergillus spread worldwide. —

Maryn McKenna, Scientific American, 13 Feb. 2025 But if the music exists that could satisfactorily burnish over Redwood’s simultaneous thinness and wonkiness as a narrative, its creators haven’t found it yet. —

Sara Holdren, Vulture, 13 Feb. 2025 By the numbers: Following its IPO, which included the simultaneous acquisition of Complex, BuzzFeed had more than 1,500 employees, per regulatory filings. —

Sara Fischer, Axios, 11 Feb. 2025 The Global Fund’s exit was compounded by the simultaneous withdrawal of funding from the United Nations Office on Drugs and Crime, an aid donor that had previously supported HIV-prevention efforts among people who inject drugs, such as needle and syringe exchange programs. —

Gavin Yamey, TIME, 3 Feb. 2025 See all Example Sentences for simultaneous

Recent Examples of Synonyms for simultaneous

Adjective

He has been sentenced to life in prison in that case as well, and the sentences will run concurrent with each other, the district attorney’s office said in a social media post on Friday, Feb. 7.

— Lillie Davidson, Fort Worth Star-Telegram, 7 Feb. 2025
The follow-up to Kingdom Come: Deliverance eclipsed its predecessor's launch stats on PC with ease, racking up a concurrent user (CCU) peak of 159,351 during its first day, according to SteamDB.

— Thomas G. Moukawsher, Newsweek, 5 Feb. 2025