/ Thesaurus / L Synonyms of lastingness Find synonyms for: Noun1. lastingness, durability, enduringness, strength, permanence, permanencyusage: permanence by virtue of the power to resist stress or force; "they advertised the durability of their products"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language