Breadcrumb Home > Thesaurus > Q Cite Synonyms of quantum leap Find synonyms for: Noun1. quantum leap, quantum jump, jump, leapusage: a sudden large increase or advance; "this may not insure success but it will represent a quantum leap from last summer"WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved. TrendingHere are the facts and trivia that people are buzzing about. February 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: nosegay Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language