Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “ultimatum”

ultimatum

noun [C]    /ˌʌl·təˈmeɪ·t̬əm/
a demand that a person or group do something to avoid something unpleasant: The workers got an ultimatum – go back to work or face dismissal.
(Definition of ultimatum noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of ultimatum

Definitions of “ultimatum” in other dictionaries

Word of the Day

cruise

a journey on a large ship for pleasure, during which you visit several places

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More