incontestable because of having been demonstrated or proved to be demonstrable.
Logic. (of a proposition) necessarily true or logically certain.

Nearby words

  1. apodeictic,
  2. apodeipnon,
  3. apodema,
  4. apodeme,
  5. apodia,
  6. apodis,
  7. apodosis,
  8. apodous,
  9. apodyterium,
  10. apoenzyme

Also ap·o·deic·tic [ap-uh-dahyk-tik] /ˌæp əˈdaɪk tɪk/, ap·o·dic·ti·cal.

Origin of apodictic

1645–55; < Latin apodīcticus < Greek apodeiktikós proving fully. See apo-, deictic

Related formsap·o·dic·ti·cal·ly, ap·o·deic·ti·cal·ly, adverb

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

Examples from the Web for apodeictic

British Dictionary definitions for apodeictic


apodictic (ˌæpəˈdɪktɪk)


unquestionably true by virtue of demonstration
logic archaic
  1. necessarily true
  2. asserting that a property holds necessarily

Derived Formsapodeictically or apodictically, adverb

Word Origin for apodeictic

C17: from Latin apodīcticus, from Greek apodeiktikos clearly demonstrating, from apodeiknunai to demonstrate

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

Word Origin and History for apodeictic



"clearly demonstrated," 1650s, from Latin apodicticus, from Greek apodeiktikos, from apodeiktos, verbal adjective of apodeiknynai "to show off, demonstrate," literally "to point away from" (other objects, at one), from apo "off, away" (see apo-) + deiknynai "to show" (see diction).

Online Etymology Dictionary, © 2010 Douglas Harper