capable of being decided. / (computer science) describing a set for which there exists an algorithm that will determine whether any element is or is not within the set in a finite amount of time.

(logic, computer science) The state or condition of being decidable.

plural of decidability

A falling off.

(obsolete) Means of forming a decision.

plural of decidement

plural of decided

simple past tense and past participle of decide

Determined; resolute. / Clear; unmistakable.

A voter etc. who has reached their decision.