ultimatedecision

noun
UK /ˈʌltɪmət dɪˈsɪʒən/
US /ˈʌltəmət dɪˈsɪʒən/

The final choice that ends all other choices.

After thinking for a long time, she made the ultimate decision to move to a new city.


OTHER MEANINGS

2. The most important choice in a series of choices.

Choosing the right school was the ultimate decision for the family.

3. A decision that cannot be changed or appealed.

The judge's ruling was the ultimate decision in the case.

4. The highest or supreme judgment on a matter.

The board's vote was the ultimate decision on the new policy.