/ Thesaurus / P Synonyms of ponderosity Find synonyms for: Noun1. heft, heftiness, massiveness, ponderousness, ponderosity, heaviness, weightinessusage: the property of being large in massWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language