How do you say “ultimatum” in Vietnamese?

Vietnamese words for “ultimatum”

• tối hậu thưListennoun
  Hanoi [toj˧˦ həw˧˨ʔ tʰɨ˧˧] · Saigon [toj˦˥ həw˨˩˨ tʰɨ˧˧]tối rising hậu heavy thư level

  an ultimatum

  for “ultimatum” meaning: A final statement of terms or conditions made by one party to another, especially one that expresses a threat of reprisal or war if the terms are not met before some specified date and time.