AskDefine | Define deadly

Dictionary Definition

deadly adj
1 causing or capable of causing death; "a fatal accident"; "a deadly enemy"; "mortal combat"; "a mortal illness" [syn: deathly, mortal]
2 of an instrument of certain death; "deadly poisons"; "lethal weapon"; "a lethal injection" [syn: lethal]
3 extremely poisonous or injurious; producing venom; "venomous snakes"; "a virulent insect bite" [syn: venomous, virulent]
4 involving loss of divine grace or spiritual death; "the seven deadly sins" [syn: mortal(a)]
5 exceedingly harmful [syn: baneful, pernicious, pestilent]
6 (of a disease) having a rapid course and violent effect adv
1 as if dead [syn: lifelessly]
2 as if produced by death; "deadly pale"; "a deadly paralytic stroke"
3 (used as intensives) extremely; "she was madly in love"; "deadly dull"; "deadly earnest"; "deucedly clever"; "insanely jealous" [syn: madly, insanely, deucedly, devilishly] [also: deadliest, deadlier]

User Contributed Dictionary



etyl ang deadlic (adj.), deadlice (adv.).


  • /ˈdɛdli/


  1. lethal
  2. In the context of "by extension": very accurate (of aiming with a bow, firearm, etc.)
  3. very boring
  4. (Australian Aboriginal English) excellent, awesome, cool


very accurate
very boring
excellent, awesome, cool

Derived terms


  1. Fatally, mortally.
    • 1603, John Florio, translating Michel de Montaigne, Essays, Folio Society 2006, p. 16:
      perceiving himselfe deadly wounded by a shot received in his body, being by his men perswaded to come off and retire himselfe from out the throng, answered, he would not now so neere his end, begin to turn his face from his enemie
  2. In a way which suggests death.
    Her face suddenly became deadly white.


Related terms

Extensive Definition

Deadly may refer to:

See also

Synonyms, Antonyms and Related Words

a la mort, abominably, accurate, agonizingly, ashen, awful, awfully, baldly, baleful, balefully, baneful, barbaric, barbarous, bitterly, blatantly, bloodthirsty, blue, boring, brashly, brutal, cadaverous, calamitous, cataclysmal, cataclysmic, catastrophic, catching, cold-blooded, communicable, confoundedly, consuming, consumptive, contagious, corpselike, corroding, corrosive, corrupting, corruptive, counterproductive, cruelly, damaging, damnably, dangerous, dead, deadened, death-bringing, deathful, deathlike, deathly, deathly pale, deleterious, demolishing, demolitionary, depredatory, desolating, destroying, destructive, detrimental, deucedly, devastating, disadvantageous, disastrous, disserviceable, distressing, distressingly, dolorously, doomful, dreadful, dreadfully, dreary, dull, eerie, egregiously, envenomed, exact, excessively, excruciating, excruciatingly, exorbitantly, extravagantly, fatal, fateful, fearful, feral, ferocious, flagrantly, fratricidal, frightful, frightfully, ghastly, ghostlike, ghostly, grievously, grisly, gruesome, haggard, harmful, heartless, hellishly, homicidal, horrible, horribly, howling, humdrum, hurtful, implacable, improperly, inexcusably, infectious, infective, infernally, inhuman, injurious, inordinately, internecine, intolerably, killing, lamentably, lethal, livid, lurid, macabre, malefic, malevolent, malign, malignant, mephitic, merciless, miasmal, miasmatic, miasmic, mischievous, miserably, mortal, mortuary, murderous, nakedly, nihilist, nihilistic, noisome, noxious, ominous, openly, painfully, pale, pallid, pernicious, pestiferous, pestilent, pestilential, piteously, pitiless, poisonous, precise, prejudicial, ravaging, rousing, ruining, ruinous, ruthless, sadly, savage, scatheful, self-destructive, shatteringly, shockingly, slaying, something awful, something fierce, sorely, staggeringly, subversionary, subversive, suicidal, tedious, terrible, terribly, terrific, thumping, tiresome, to the death, torturously, toxic, toxicant, toxiferous, true, unashamedly, unbearably, uncanny, unconscionably, unduly, unearthly, unerring, unfailing, unpardonably, vandalic, vandalish, vandalistic, venenate, veneniferous, venenous, venomous, vicious, virulent, wan, wasteful, wasting, wearisome, wearying, weird, whacking, white, withering, woefully
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