/ Thesaurus / D Synonyms of demoniacally Find synonyms for: Adverb1. demoniacally, freneticallyusage: in a very agitated manner; as if possessed by an evil spiritWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language