• synonyms


[dih-sahy-duh-buh l]
See more synonyms for decidable on Thesaurus.com
  1. capable of being decided.
  2. Logic. (of an axiom, proposition, etc.) having the property that its consistency or inconsistency with the axioms of a given logical system is determinable.
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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. 2018

British Dictionary definitions for decidable


  1. able to be decided
  2. 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
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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