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

Keep contemporaneous evidence of intent and commercial substance, monitor capitalization and third‑party borrowing alternatives, and assess the ripple effects of a possible reclassification on reporting obligations like Forms 5471, 8621, 8938 and FBAR. —Virginia La Torre Jeker, Forbes.com, 13 Sep. 2025

Doubling as an account of modern American conservatism (from media gadflies to six Supreme Court justices), the film is punctuated with contemporaneous footage that, viewed through the lens of Olin’s misdeeds, generates the tension and shock of a genre film. —Christian Zilko, IndieWire, 7 Aug. 2025

But transparency cannot come at the expense of the very people whom the justice system is sworn to protect—particularly amid contemporaneous events that magnify risk and trauma. —Aaron Katersky, ABC News, 5 Aug. 2025

The investigation team, which interviewed 78 witnesses and reviewed contemporaneous documents and unedited program footage, substantiated 45 of the allegations — just over half of those made. —Naman Ramachandran, Variety, 14 July 2025