English Reference

Word

undertaken

Phoneticsun·der·tak·en

US/ˈəndɝˌteɪkən/

UK/ˌʌndətˈeɪkən/

Definition

v. to start a job, task, or responsibility that might be difficult or take a long time. It means you agree to do the work and begin the process.

v. the past participle of 'undertake', meaning to commit oneself to and begin a task, project, or responsibility. Often implies a formal or significant commitment to a complex process.

Examples

“The team has undertaken a massive new project this month.”

“The university has undertaken a complete review of its safety policies to better protect students on campus.”

“Having undertaken the arduous task of cataloging the entire archive, the historian discovered several letters that fundamentally altered the established narrative of the war.”

Examples

simple

“The team has undertaken a massive new project this month.”

contextual

“The university has undertaken a complete review of its safety policies to better protect students on campus.”

complex

“Having undertaken the arduous task of cataloging the entire archive, the historian discovered several letters that fundamentally altered the established narrative of the war.”

Usage

The past participle of the irregular verb 'undertake' (undertake, undertook, undertaken). It is transitive and requires a direct object.

Pitfall

The work was undertook by experts.

The work was undertaken by experts.

Learners often confuse the simple past 'undertook' with the past participle 'undertaken' in passive constructions.

Real-World Examples

“He has also undertaken a wide-ranging effort to root out what he calls “wokeness” from the military.”
Al Jazeera · 2 Sept 2026
“Despite the challenges, these endeavors continue, because they are undertaken in pursuit of a much larger goal: understanding the sun, our most important resource.”
Smithsonian Magazine · 28 Jul 2026

This entry

Level
B2 · Upper Intermediate
Frequency
Frequent
Updated

Scan code

englishreference.com/q/undertaken

English Reference