What does deadly mean?

Definitions for deadly
ˈdɛd lidead·ly

Here are all the possible meanings and translations of the word deadly.

Princeton's WordNet

  1. deadly, deathly, mortaladjective

    causing or capable of causing death

    "a fatal accident"; "a deadly enemy"; "mortal combat"; "a mortal illness"

  2. deadly, lethaladjective

    of an instrument of certain death

    "deadly poisons"; "lethal weapon"; "a lethal injection"

  3. deadly, venomous, virulentadjective

    extremely poisonous or injurious; producing venom

    "venomous snakes"; "a virulent insect bite"

  4. deadly, mortal(a)adjective

    involving loss of divine grace or spiritual death

    "the seven deadly sins"

  5. baneful, deadly, pernicious, pestilentadjective

    exceedingly harmful

  6. deadlyadverb

    (of a disease) having a rapid course and violent effect

  7. deadly, lifelesslyadverb

    as if dead

  8. madly, insanely, deadly, deucedly, devilishlyadverb

    (used as intensives) extremely

    "she was madly in love"; "deadly dull"; "deadly earnest"; "deucedly clever"; "insanely jealous"


  1. deadlyadverb

    Fatally, mortally.

  2. deadlyadverb

    In a way which suggests death.

    Her face suddenly became deadly white.

  3. deadlyadverb


  4. deadlyadjective

    Subject to death; mortal.

  5. deadlyadjective

    Causing death; lethal.

  6. deadlyadjective

    very accurate (of aiming with a bow, firearm, etc.)

  7. deadlyadjective

    very boring

  8. deadlyadjective

    excellent, awesome, cool

  9. Etymology: deadlic (adj.), deadlice (adv.), corresponding to. Cognate with Dutch dodelijk, German tödlich.

Samuel Johnson's Dictionary

  1. Deadlyadjective

    Etymology: from dead.

    She that herself will shiver and disbranch
    From her material sap, perforce must wither,
    And come to deadly use. William Shakespeare, King Lear.

    She then on Romeo calls,
    As if that name,
    Shot from the deadly level of a gun,
    Did murther her. William Shakespeare, Romeo and Juliet.

    Dry mourning will decay more deadly bring,
    As a North wind burns a too forward Spring;
    Give sorrow vent, and let the sluices go. John Dryden, Aurengb.

    The Numidians, in number infinite, are deadly enemies unto the Turks. Richard Knolles, History of the Turks.

  2. Deadlyadverb

    Like dumb statues, or unbreathing stones,
    Star’d each on other, and look’d deadly pale. William Shakespeare, R. III.

    Young Arcite heard, and up he ran with haste,
    And ask’d him why he look’d so deadly wan. John Dryden, Fables.

    I will break Pharaoh’s arms, and he shall groan before him with the groanings of a deadly wounded man. Ez. xxx. 24.

    Mettled schoolboys set to cuff,
    Will not confess that they have done enough,
    Though deadly weary. Orrery.

    John had got an impression, that Lewis was so deadly cunning a man, that he was afraid to venture himself alone with him. John Arbuthnot, History of John Bull.

Webster Dictionary

  1. Deadlyadjective

    capable of causing death; mortal; fatal; destructive; certain or likely to cause death; as, a deadly blow or wound

  2. Deadlyadjective

    aiming or willing to destroy; implacable; desperately hostile; flagitious; as, deadly enemies

  3. Deadlyadjective

    subject to death; mortal

  4. Deadlyadverb

    in a manner resembling, or as if produced by, death

  5. Deadlyadverb

    in a manner to occasion death; mortally

  6. Deadlyadverb

    in an implacable manner; destructively

  7. Deadlyadverb



  1. Deadly

    Deadly! is a series of children's books written by Morris Gleitzman and Paul Jennings first published in 2000.

How to pronounce deadly?

How to say deadly in sign language?


  1. Chaldean Numerology

    The numerical value of deadly in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of deadly in Pythagorean Numerology is: 6

Examples of deadly in a Sentence

  1. Anthony Solomon:

    They faced tribal warfare and rogue villagers in Papua New Guinea who spread a rumor that the teams were vampires, they worked in Ethiopia's Afar region, one of the most hostile territories in the world in which to conduct community-based research, amid sandstorms, temperatures of 50 degrees Celsius and deadly venomous spiders.

  2. Lee Merritt:

    There was nothing nefarious or illegal about owning a firearm, and they presented in no way that that firearm was contributory to toward the use of deadly force here.

  3. Police Chief David Brown:

    With police-involved shootings now in this country, we’re very hypercritical of every officer’s actions. But the suspect was armed with a box cutter, the officer used deadly force as a last resort.

  4. White House:

    Admiral Jackson has been on the front lines of deadly combat and saved the lives of many others in service to this country, he's served as the physician to three Presidents—Republican and Democrat—and been praised by them all. Admiral Jackson's record of strong, decisive leadership is exactly what's needed at the VA to ensure our veterans receive the benefits they deserve.

  5. Danielle Robinson:

    Sgt. First Class Heath Robinson, left, developed a rare form of deadly cancer after Heath Robinson was exposed to burn pits during a 13-month tour of duty in Iraq. ( Susan Zeier).

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    a defeat in which the losing person or team fails to score
    • A. germ
    • B. whitewash
    • C. snap
    • D. concoction

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