Simple Definition of ultimatum
: a final threat : a promise that force or punishment will be used if someone does not do what is wanted
Examples of ultimatum in a sentence
She was given an ultimatum—work harder or lose her job.
<issued the ultimatum that the project be finished by the following week, or it would be terminated>
Origin of ultimatum
New Latin, from Medieval Latin, neuter of ultimatus final
First Known Use: 1731
ULTIMATUM Defined for Kids
Definition of ultimatum for Students
plural ultimatums or ultimata \-ˈmā-tə\
: a final condition or demand that if rejected could end future negotiations and lead to forceful or undesirable action
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