de·​cid·​able di-ˈsī-də-bəl How to pronounce decidable (audio)
: capable of being decided
specifically : capable of being decided as following or not following from the axioms of a logical system
Was logic complete … ? And was it decidable, in the sense that there was a method that demonstrated the truth or falsity of every statement? Stan Augarten
By the beginning of this century symbolic logic had progressed to such an extent that the German mathematician David Hilbert declared that all mathematical questions are in principle decidableGregory J. Chaitin
decidability noun

Word History


decide + -able

First Known Use

1594, in the meaning defined above

Time Traveler
The first known use of decidable was in 1594

Dictionary Entries Near decidable

Cite this Entry

“Decidable.” Dictionary, Merriam-Webster, Accessed 28 Nov. 2023.

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