Synonyms of contemporaneous

contemporaneous

adjective

kən-ˌtem-pə-ˈrā-nē-əs 

as in concurrent

existing or occurring at the same period of time

contemporaneous accounts of the battle from officers on both sides

Synonyms & Similar Words

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

Antonyms & Near Antonyms

• asynchronous
• nonsynchronous
• nonsimultaneous
• noncontemporary

Synonym Chooser

How does the adjective contemporaneous differ from other similar words?

Some common synonyms of contemporaneous are coeval, coincident, contemporary, simultaneous, and synchronous. While all these words mean "existing or occurring at the same time," contemporaneous is more often applied to events than to people.

contemporaneous accounts of the kidnapping

When is coeval a more appropriate choice than contemporaneous?

While in some cases nearly identical to contemporaneous, coeval refers usually to periods, ages, eras, eons.

two stars thought to be coeval

When can coincident be used instead of contemporaneous?

In some situations, the words coincident and contemporaneous 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

Where would contemporary be a reasonable alternative to contemporaneous?

Although the words contemporary and contemporaneous have much in common, contemporary is likely to apply to people and what relates to them.

Abraham Lincoln was contemporary with Charles Darwin

When is it sensible to use simultaneous instead of contemporaneous?

The meanings of simultaneous and contemporaneous largely overlap; however, simultaneous implies correspondence in a moment of time.

the two shots were simultaneous

When would synchronous be a good substitute for contemporaneous?

The words synchronous and contemporaneous are synonyms, but do differ in nuance. Specifically, synchronous implies exact correspondence in time and especially in periodic intervals.

synchronous timepieces

Example Sentences

Recent Examples of contemporaneous

Margolis was listed in contemporaneous LAPD and grand jury documents as a suspect in the Black Dahlia murder. —Tribune News Service, Baltimore Sun, 15 Jan. 2026

Margolis was listed in contemporaneous LAPD and grand jury documents as a suspect in the Black Dahlia murder. —Peter Larsen, Oc Register, 14 Jan. 2026

Mayne, the registrar at the Raupp Museum in Buffalo Grove, and Debbie Fandrei, the museum’s director and the other historian, began a search of dozens of contemporaneous sources, including the News-Sun. —Steve Sadin, Chicago Tribune, 12 Jan. 2026

The New York agency’s director of sustainability, Emma Grace Bailey, cited the dilemma as one of the most common (and contemporaneous) concerns heard. —Alexandra Harrell, Sourcing Journal, 18 Dec. 2025