- 1happening at the end of a long process synonym final our ultimate goal/aim/objective/target We will accept ultimate responsibility for whatever happens. The ultimate decision lies with the parents.
- 2most extreme; best, worst, greatest, most important, etc. This race will be the ultimate test of your skill. Silk sheets are the ultimate luxury. Nuclear weapons are the ultimate deterrent.
- 3from which something originally comes synonym basic synonym fundamental the ultimate truths of philosophy and science We could not trace the ultimate source of the rumors.
Check pronunciation: ultimate