Definition of omniscient
- an omniscient author
- the narrator seems an omniscient person who tells us about the characters and their relations
- —Ira Konigsberg
- the omniscient God
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These example sentences are selected automatically from various online news sources to reflect current usage of the word 'omniscient.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
One who is omniscient literally knows all. The word omniscient, which has been part of English since at least the beginning of the 17th century, brings together two Latin roots: the prefix omni-, meaning "all," and the verb scire, meaning "to know." You will recognize omni- as the prefix that tells all in such words as omnivorous ("eating all" or, more precisely, "eating both meat and vegetables") and omnipotent ("all-powerful"). Scire likewise has a number of other knowledge-related descendants in English, including conscience, science, and prescience (meaning "foreknowledge").
: knowing everything : having unlimited understanding or knowledge
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