Breadcrumb Home > Thesaurus > O Synonyms of onetime Find synonyms for: Adjective 1. erstwhile(prenominal), former(prenominal), old, onetime(prenominal), one-time(prenominal), quondam(prenominal), sometime(prenominal), past (vs. present) (vs. future) usage: belonging to some prior time; "erstwhile friend"; "our former glory"; "the once capital of the state"; "her quondam lover" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of onetime (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: plutocracy Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language