/ Thesaurus / H Synonyms of high time Find synonyms for: Noun1. high time, timeusage: the latest possible moment; "it is high time you went to work"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: aversion Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language