An ultimatum (Latin: the last one) is a demand whose fulfillment is requested in a specified period of time and which is backed up by a threat to be followed through in case of noncompliance. An ultimatum is generally the final demand in a series of requests. As such, the time allotted is usually short, and the request is understood not to be open to further negotiation.
Have you ever issued an ultimatum in a relationship? Do you think it is a good tactic? If you don't want to write publicly about your experience in the comment section, feel free to leave an anonymous comment, or email me at firstname.lastname@example.org.