/ Thesaurus / I Synonyms of impeccability Find synonyms for: Noun1. faultlessness, impeccability, correctnessusage: the quality of being without an error or fault2. impeccability, righteousnessusage: the quality of being exempt from sin or incapable of sinningWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language