/ Thesaurus / N Synonyms of national debt ceiling Find synonyms for: Noun1. national debt ceiling, debt limit, debt ceilingusage: a limit set by Congress beyond which the national debt cannot rise; periodically raised by CongressWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language