/ Thesaurus / F Synonyms of forever and a day Find synonyms for: Adverb1. forever, forever and a dayusage: for a very long or seemingly endless time; "she took forever to write the paper"; "we had to wait forever and a day"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language