deathly

1 of, relating to, or suggestive of death his deathly pallor suggested that any attempt to find a pulse would be futile Synonyms dead, deadly, mortal, mortuary Related Words cadaverous; ghostlike, ghostly, phantom, spectral; inactive, inert, inoperative, lifeless, quiescent, still; macabre; baleful, fatal, fateful, fell, killer, lethal, murderous, pestilent Near Antonyms active, alive, animate, breathing, live, living; animated, bouncing, brisk, energetic, frisky, gay, jaunty, jazzy, lively, peppy, perky, pert, racy, snappy, spanking, sparky, spirited, sprightful, sprightly, springy, vigorous, vital, vivacious, zippy; able-bodied, chipper, fit, hale, healthy, hearty, robust, sound, well, whole, wholesome

2 likely to cause or capable of causing death smallpox is one deathly disease that medical science has been able to conquer Synonyms baleful, deadly, fatal, fell, killer, lethal, mortal, murderous, pestilent, terminal, vitalRelated Words baneful, deleterious, destructive, harmful, injurious, noxious, pernicious, truculent; infectious, infective, pestilential, poisonous, sublethal, toxic, virulent; dangerous, grave, grievous, hazardous, jeopardizing, menacing, parlous, perilous, risky, serious, threatening, ugly, unhealthy, unsound; bloody, internecine, sanguinary, sanguineNear Antonyms beneficial, restorative, salubrious, salutary; alleviative, corrective, curative, remedial, tonic; advantageous, beneficial, useful; nonpoisonous, nontoxic, safeAntonyms healthful, healthy, nonfatal, nonlethal, wholesome