What does "coetaneous" mean?

Belonging to the same age, era or period; coeval or contemporary.

What is a synonym for "coetaneous"?

Common synonyms include: accompanying, agreeing, coeternal, coeval, coexistent, collateral.

How do you pronounce "coetaneous"?

Pronounced //ˌkoʊ.ɪˈteɪn.i.əs//.

Coetaneous

//ˌkoʊ.ɪˈteɪn.i.əs// adj

adj ·Rare ·Advanced level

Definitions

Adjective

1
Belonging to the same age, era or period; coeval or contemporary.
"The beginning of [Theodore] Parker's own perplexities was almost coetaneous with the establishment of Brook Farm, for his 'Discourse of the Transient and Permanent in Religion,' which was preached at the ordination of Mr. Shackford in South Boston, on May 19, 1841, occasioned the division of the religious community for and against him."

Adjective

1
of the same period wordnet

Synonyms

All synonyms

accompanying agreeing coeternal coeval coexistent collateral

Example

More examples

"The beginning of [Theodore] Parker's own perplexities was almost coetaneous with the establishment of Brook Farm, for his 'Discourse of the Transient and Permanent in Religion,' which was preached at the ordination of Mr. Shackford in South Boston, on May 19, 1841, occasioned the division of the religious community for and against him."

Etymology

Learned borrowing from Late Latin coaetaneus (“one of the same age”).

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.