Definition of ultimatum in English:

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Pronunciation: /ˌəltəˈmādəm/

noun (plural ultimatums or ultimata /-ˈmātə/ /-ˈmätə/)

A final demand or statement of terms, the rejection of which will result in retaliation or a breakdown in relations: their employers issued an ultimatum demanding an immediate return to work a “Marry me or else” ultimatum
More example sentences
  • In recent years he has repeatedly issued ultimatums demanding that area plants become more profitable.
  • This should be an ultimatum - accept new terms and conditions or think about an alternative career.
  • Instead, he issued an ultimatum to the people who are suffering under this occupation.
final offer, final demand, take-it-or-leave-it deal;


Mid 18th century: from Latin, neuter past participle of ultimare 'come to an end'.

Words that rhyme with ultimatum

datum, petrolatum, pomatum, Tatum

For editors and proofreaders

Syllabification: ul·ti·ma·tum

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