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[om-nish-uh nt] /ɒmˈnɪʃ ənt/
having complete or unlimited knowledge, awareness, or understanding; perceiving all things.
an omniscient being.
the Omniscient, God.
Origin of omniscient
1595-1605; < New Latin omniscient-, stem of omnisciēns, equivalent to Latin omni- omni- + scient- knowing; see science
Related forms
omnisciently, adverb
unomniscient, adjective
unomnisciently, adverb
Can be confused
omnipotent, omniscient. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for omniscient
Contemporary Examples
Historical Examples
  • Because He is omniscient, and we cannot hide anything from Him, not even our thoughts.

  • Hetty would have liked to be omniscient that she might procure for him all he could desire.

  • Does not your omniscient brother appear to you to have made a mistake?

    Euthydemus Plato
  • That is the hobby of all diplomatists; they like people to believe that they are omniscient.

    The Memoires of Casanova, Complete Jacques Casanova de Seingalt
  • She did not even ask me what I meant; as if the greatness of her soul was omniscient.

    Romance Joseph Conrad and F.M. Hueffer
  • Aum, the Absolute, the omniscient, is always typified by a circle.

  • Even if the bureaucracy were omniscient, such a condition of life would be intolerable.

    Socialism John Spargo
  • The law, whose arrangements of words are omniscient, provided such a halo.

    Erik Dorn

    Ben Hecht
British Dictionary definitions for omniscient


having infinite knowledge or understanding
having very great or seemingly unlimited knowledge
Derived Forms
omniscience, noun
omnisciently, adverb
Word Origin
C17: from Medieval Latin omnisciens, from Latin omni- + scīre to know
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
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Word Origin and History for omniscient

c.1600, from Modern Latin omniscientem (nominative omnisciens), back-formation from Medieval Latin omniscientia (see omniscience). Related: Omnisciently.

Online Etymology Dictionary, © 2010 Douglas Harper
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