/ Thesaurus / P Synonyms of perfectibility Find synonyms for: Noun1. perfectibility, capability, capableness, potentialityusage: the capability of becoming perfect; "he believes in the ultimate perfectibility of man"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language