(Mathematics) Existing beyond or being greater than any arbitrarily large value.
(Slang) Rude and disrespectful; impudent.
Having or showing much learning; well-informed; erudite
Find another word for omniscient. In this page you can discover 17 synonyms, antonyms, idiomatic expressions, and related words for omniscient, like: all-knowing, infinite, pre-eminent, omnipotent, wise, pansophical, stupid, unknowing, almighty, knowledgeable and learned.