noun \ˌəl-tə-ˈmā-təm, -ˈmä-\

: a final threat : a promise that force or punishment will be used if someone does not do what is wanted

plural ul·ti·ma·tums or ul·ti·ma·ta \-tə\

Full Definition of ULTIMATUM

:  a final proposition, condition, or demand; especially :  one whose rejection will end negotiations and cause a resort to force or other direct action

Examples of ULTIMATUM

  1. She was given an ultimatum—work harder or lose her job.
  2. <issued the ultimatum that the project be finished by the following week, or it would be terminated>


New Latin, from Medieval Latin, neuter of ultimatus final
First Known Use: 1731

Rhymes with ULTIMATUM


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