Synonyms for fatal Found 4 synonyms across 2 meanings for “fatal”. having momentous consequences (adj) fateful (of events) having extremely unfortunate or dire consequences (adj) blackcalamitousdisastrous Explore Related Words Rhymes with fatalSynonyms for fatefulSynonyms for blackSynonyms for calamitousSynonyms for disastrous Synonym Finder | Rhyme Finder | Poetry Editor