Ultimatum is the term attributed to last requirements of a proposal or negotiation, irrevocable and irrefutable.
An ultimatum should be interpreted as someone's last word, that is, their final position in a debate. Ultimatums are often very common in diplomatic circles, especially in the relationship between countries.
The ultimatum occurs when one of the parties involved makes a firm decision about some aspect of the negotiation, requiring a response or position from the other parties involved.
Thus, the ultimatum consists of a last warning, a summons for the subpoenaed party to yield to the intimidator's demands, before the intimidator agrees to more aggressive measures.
In wars, for example, the ultimatum occurs when the proposal made by one of the sides is not accepted or respected, so the leaders of other nations apply an ultimatum, forcing their enemies to surrender, otherwise they would advance into conflict warlike.
Ultimatum is also used in colloquial language, referring to the last warning that a person gives to another regarding any kind of matter.
Example:"The company issued an ultimatum to the employee, otherwise he will be fired".
In the legal field, in turn, the ultimatum is interpreted as part of the law of probate, when someone's will must be respected and fulfilled after their death.
Etymologically, the term "ultimatum" originated from the Latin ultimatum, which can be translated as “the furthest away” or “the last”.
See also: O meaning of checkmate.