lethal Synonyms

deadly deleterious destructive killing ruinous toxic harmful poisonous venomous fatal dangerous mortal death-dealing life-threatening necrotic toxicant miasmatic pestilential pestilent pernicious mortally mortiferous murderous perilous nocuous neoplastic noxious sanguinary nonfatal lethal gene orca deadliest unhealthy virulent savage venenate untreatable terminating terminal suicidal slaughterous self-destructive metastatic mephitical effluvial disserviceable disastrous devastating detrimental deathly