[om-nish-uh nt]
  1. an omniscient being.
  2. the Omniscient, God.

Origin of omniscient

1595–1605; < New Latin omniscient-, stem of omnisciēns, equivalent to Latin omni- omni- + scient- knowing; see science
Related formsom·nis·cient·ly, adverbun·om·nis·cient, adjectiveun·om·nis·cient·ly, adverb
Can be confusedomnipotent omniscient Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for omnisciently


  1. having infinite knowledge or understanding
  2. having very great or seemingly unlimited knowledge
Derived Formsomniscience, nounomnisciently, adverb

Word Origin for omniscient

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

Word Origin and History for omnisciently



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

Online Etymology Dictionary, © 2010 Douglas Harper