from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Having total knowledge; knowing everything.
  • noun One having total knowledge.
  • noun God. Used with the.

from The Century Dictionary.

  • All-knowing; possessing knowledge of all things; having infinite or universal knowledge: as, God only is omniscient.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Having universal knowledge; knowing all things; infinitely knowing or wise.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Having total knowledge.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective infinitely wise


from The American Heritage® Dictionary of the English Language, 4th Edition

[Medieval Latin omnisciēns, omniscient- : Latin omni-, omni- + Latin sciēns, scient-, present participle of scīre, to know; see skei- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Medieval Latin omnisciens ("all-knowing"), from Latin omnis ("all") + sciens ("knowing").


Help support Wordnik (and make this page ad-free) by adopting the word omniscient.



Log in or sign up to get involved in the conversation. It's quick and easy.

  • Me: Can you help me to find peace?

    God: Certainly, I have an extensive built-in help system.

    Me: Flop out the good vibes then. Please.

    God: What is vibrating and what is causing it to vibrate?

    Me: I thought you were omniscient?

    God: I don't know whether or not I am omniscient.

    - from a conversation with a chatbot known as iGod.

    February 16, 2009

  • The recorded Macmillan pronunciation on this entry disagrees with the pronunciation written out above it. Can bad pronunciations be deleted?

    May 16, 2011