Noun
A final proposition, concession, or condition; especially, the final propositions, conditions, or terms, offered by either of the parties in a diplomatic negotiation; the most favorable terms a negotiator can offer, the rejection of which usually puts an end to the hesitation.
Source: Webster's dictionaryWe are not diplomats but prophets, and our message is not a compromise but an ultimatum. Aiden Wilson Tozer
His conscience must have gotten tired of nagging him and delivered an ultimatum. Poul Anderson
I didn't quit that band because I wanted to. I quit that band because I had to. Because when people give you an ultimatum about your family, what are you going to do? But the problem was no one was being truthful at the time. Tom DeLonge
I am convinced that we face a great offensive immediately," "We have lost more than 400 killed and 300 wounded since Nov. 5 and now the Japanese have handed an ultimatum to me. I know we are not strong enough to fight. But we must hold our own, until Death! Ma Zhanshan
I think that, whether you liked the outcome or not, the reasons for doing Ultimatum were necessary. The Ultimate Universe had become too much like the regular Marvel Universe, and that was certainly not a good thing for the line. Jonathan Hickman
Never give a golfer an ultimatum unless you're prepared to lose. Abigail Van Buren