decidable

[ dih-sahy-duh-buh l ]
/ dɪˈsaɪ də bəl /

adjective

capable of being decided.
Logic. (of an axiom, proposition, etc.) having the property that its consistency or inconsistency with the axioms of a given logical system is determinable.

Nearby words

  1. decholesterolization,
  2. deci-,
  3. deciare,
  4. decibar,
  5. decibel,
  6. decide,
  7. decided,
  8. decidedly,
  9. decider,
  10. deciding

Origin of decidable

First recorded in 1585–95; decide + -able

Related formsde·cid·a·bil·i·ty, nounun·de·cid·a·ble, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for undecidable

decidable

/ (dɪˈsaɪdəbəl) /

adjective

able to be decided
logic (of a formal theory) having the property that it is possible by a mechanistic procedure to determine whether or not any well-formed formula is a theorem
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012