Words that Rhyme with ultimatum
2 Syllable Words
datum, tatum
3 Syllable Words
sense-datum, verbatim
4 Syllable Words
mentholatum
Definition of ultimatum
n. 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.