/ Thesaurus / S Synonyms of speed demon Find synonyms for: Noun1. speeder, speed demon, driverusage: a driver who exceeds the safe speed limitWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language