/ Thesaurus / I Synonyms of impeccant Find synonyms for: Adjective1. impeccant, innocent, sinless, virtuous (vs. wicked)usage: free from sinWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language