/ Thesaurus / S Synonyms of speed limit Find synonyms for: Noun1. speed limit, regulation, ordinanceusage: regulation establishing the top speed permitted on a given roadWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language