Synonyms for deathly Found 6 synonyms across 3 meanings for “deathly”. having the physical appearance of death (adj) deathlike causing or capable of causing death (adj) deadlymortal to an extreme degree (adv) extremelyexceedinglysuper Explore Related Words Rhymes with deathlySynonyms for deathlikeSynonyms for deadlySynonyms for mortalSynonyms for extremelySynonyms for exceedingly Synonym Finder | Rhyme Finder | Poetry Editor