Synonyms for sinful Found 6 synonyms across 3 meanings for “sinful”. characterized by iniquity (adj) iniquitousungodly having committed unrighteous acts (adj) unholywicked far more than usual or expected (adj) extraordinaryover-the-top Explore Related Words Rhymes with sinfulSynonyms for iniquitousSynonyms for ungodlySynonyms for unholySynonyms for wickedSynonyms for extraordinary Synonym Finder | Rhyme Finder | Poetry Editor