/ Thesaurus / I Synonyms of imperial decree Find synonyms for: Noun1. imperial decree, decree, edict, fiat, order, rescriptusage: a decree issued by a sovereign rulerWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language