/ Thesaurus / A Synonyms of agelessness Find synonyms for: Noun1. agelessness, immutability, immutableness, fixityusage: the quality of being timeless and eternalWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language