DEADLY: Synonyms and Related Words. What is Another Word for DEADLY?

Need another word that means the same as “deadly”? Find 92 synonyms and 30 related words for “deadly” in this overview.

The synonyms of “Deadly” are: deathly, mortal, lethal, venomous, virulent, baneful, pernicious, pestilent, fatal, life-threatening, irreconcilable, implacable, remorseless, relentless, unrelenting, unappeasable, unforgiving, merciless, pitiless, unerring, unfailing, impeccable, perfect, flawless, faultless, assured, sure, true, precise, accurate, correct, exact, direct, intense, great, marked, extreme, excessive, immoderate, inordinate, dead, boring, dull, dull as ditchwater, dreary, uninteresting, unexciting, uneventful, uninspiring, unstimulating, humdrum, lacklustre, dry, dry as dust, arid, flat, bland, monotonous, unrelieved, lacking variety, lacking variation, tedious, tiresome, tiring, wearisome, irksome, trying, frustrating, soul-destroying, deucedly, devilishly, insanely, madly, lifelessly, extremely, exceedingly, enormously, vastly, immensely, tremendously, hugely, markedly, remarkably, abundantly, awfully, dreadfully, mightily, very, very much, most, so

Deadly as an Adjective

Definitions of "Deadly" as an adjective

According to the Oxford Dictionary of English, “deadly” as an adjective can have the following definitions:

  • Exceedingly harmful.
  • Causing or capable of causing death.
  • Having a rapid course and violent effect.
  • Very good; excellent.
  • Extremely boring.
  • Complete; total.
  • Extremely poisonous or injurious; producing venom.
  • (of a disease) having a rapid course and violent effect.
  • Extremely accurate, effective, or skilful.
  • Of an instrument of certain death.
  • Involving loss of divine grace or spiritual death.
  • Causing or able to cause death.
  • Filled with hatred or intense rivalry.
Definitions of "Deadly" as an adjective

Synonyms of "Deadly" as an adjective (69 Words)

accurateOf an instrument or method capable of giving accurate information.
The accounting was accurate.
aridLacking vitality or spirit; lifeless-C.J.Rolo.
The arid plains north of Cape Town.
assuredMarked by assurance; exhibiting confidence.
A tiny but assured income.
banefulHarmful or destructive.
The baneful effects of envy and jealousy.
blandSmoothly agreeable and courteous with a degree of sophistication.
A bland and unadventurous vegetarian dish.
boringNot interesting; tedious.
I ve got a boring job in an office.
correctCorrect in opinion or judgment.
The correct answer.
dead(of a colour) not glossy or bright.
Crater Lake is in the crater of a dead volcano of the Cascade Range.
deathlyRelating to or causing death.
His face was deathly pale.
directFlowing in one direction only.
Direct vote.
drearyCausing dejection.
The dreary round of working eating and trying to sleep.
dryOf noodles not served in a soup but in a sauce or with dry ingredients.
Dry clothes.
dry as dustHaving a low residual sugar content because of decomposition of sugar during fermentation.
dullNot having a sharp edge or point.
He was so dull at parties.
dull as ditchwaterBeing or made softer or less loud or clear.
exact(of ideas, images, representations, expressions) characterized by perfect conformity to fact or truth; strictly correct.
An exact mind.
excessiveUnrestrained, especially with regard to feelings.
He was drinking excessive amounts of brandy.
extremeOf the greatest possible degree or extent or intensity.
Extreme sports like snowboarding.
fatalCausing death.
A fatal accident.
faultlessWithout fault or error.
Your logic is faultless.
flatRelating to flat racing.
Flat wall paint.
flawlessWithout a flaw.
Her smooth flawless skin.
frustratingPreventing realization or attainment of a desire.
It can be very frustrating to find that the size you want isn t there.
greatUsed in names of animals or plants which are larger than similar kinds e g great tit greater celandine.
Wouldn t it be great to have him back.
humdrumTediously repetitious or lacking in variety.
A humdrum existence all work and no play.
immoderateNot sensible or restrained; excessive.
Immoderate drinking.
impeccableIn accordance with the highest standards; faultless.
Speaks impeccable French.
implacableUnable to be appeased or placated.
He was an implacable enemy of Ted s.
inordinateBeyond normal limits.
The case had taken up an inordinate amount of time.
intenseExtremely sharp or intense.
Intense blue.
irksomeIrritating; annoying.
An irksome journey.
irreconcilable(of people) implacably hostile to each other.
These two views of the economy are irreconcilable.
lacking variationInadequate in amount or degree.
lacking varietyNonexistent.
lacklustreLacking in vitality, force, or conviction; uninspired or uninspiring.
No excuses were made for the team s lacklustre performance.
lethal(in a sporting context) very accurate or skilful.
A lethal injection.
life-threateningCausing fear or anxiety by threatening great harm.
markedStrongly marked easily noticeable.
Walked with a marked limp.
mercilessHaving or showing no mercy.
Gave him a merciless beating.
monotonous(of a sound or utterance) lacking in variation in tone or pitch.
Nothing is so monotonous as the sea.
mortal(of a battle) fought to the death.
She had committed a mortal sin.
perfectOf a tense denoting a completed action or a state or habitual action which began in the past The perfect tense is formed in English with have or has and the past participle as in they have eaten and they have been eating present perfect they had eaten past perfect and they will have eaten future perfect.
A perfect stranger.
perniciousHaving a harmful effect, especially in a gradual or subtle way.
The pernicious influences of the mass media.
pestilentLikely to spread and cause an epidemic disease- Jonathan Swift.
Pestilent diseases.
pitiless(especially of weather) unrelentingly harsh or severe.
A night of pitiless rain.
preciseCharacterized by perfect conformity to fact or truth ; strictly correct.
At that precise moment the car stopped.
relentlessNot to be placated or appeased or moved by entreaty.
The relentless heat of the desert.
remorselessWithout mercy or pity.
A remorseless killer.
soul-destroyingDestructive to the spirit or soul.
sureHaving or feeling no doubt or uncertainty confident and assured.
She had to check her diary to be sure of the day of the week.
tediousToo long, slow, or dull; tiresome or monotonous.
Tedious days on the train.
tiresomeSo lacking in interest as to cause mental weariness.
Weeding is a tiresome but essential job.
tiringProducing exhaustion.
It had been a tiring day.
trueOf a compass bearing measured relative to true north.
True the house faced north but you got used to that.
tryingHard to endure.
Fell upon trying times.
unappeasableNot to be placated or appeased or moved by entreaty.
Divine unappeasable justice.
unerringNot liable to error-G.G.Coulton.
An unerring sense of direction.
uneventfulMarked by no noteworthy or significant events.
A place where dull people lead uneventful lives.
unexcitingNot stimulating.
An unexciting novel.
unfailingNot liable to failure.
An unfailing source of good stories.
unforgivingNot willing to forgive or excuse people’s faults or wrongdoings.
He was always a proud and unforgiving man.
uninspiringDepressing to the spirit.
An uninspiring game that United scarcely deserved to win.
uninterestingNot arousing curiosity or interest.
The scenery is dull and uninteresting.
The heat was unrelenting.
unrelievedNot lessened or diminished.
The burden of domestic work and childcare went largely unrelieved.
unstimulatingNot stimulating.
Unstimulating conversation.
venomous(of an animal, especially a snake) secreting venom, or capable of injecting venom by means of a bite or sting.
A leading expert on venomous snakes.
virulentInfectious; having the ability to cause disease.
A virulent strain of influenza.
wearisomeSo lacking in interest as to cause mental weariness.
They have schedules and inventories that tell them in wearisome detail what they should look for.
Synonyms of "Deadly" as an adjective (69 Words)

Usage Examples of "Deadly" as an adjective

  • Deadly poisons.
  • A series of deadly attacks.
  • His aim is deadly.
  • My end of the theatre is deadly at the moment.
  • A deadly enemy.
  • It's a great town and the pubs are deadly.
  • His voice was cold and deadly.
  • The seven deadly sins.
  • A deadly weapon.
  • We are deadly enemies.
  • She was in deadly earnest.
Usage Examples of "Deadly" as an adjective

Deadly as an Adverb

Definitions of "Deadly" as an adverb

According to the Oxford Dictionary of English, “deadly” as an adverb can have the following definitions:

  • In a way resembling or suggesting death; as if dead.
  • Extremely (used as intensives.
  • Extremely.
  • As if dead.
  • (used as intensives) extremely.
Definitions of "Deadly" as an adverb

Synonyms of "Deadly" as an adverb (23 Words)

The plant grows abundantly in the wild.
awfullyVery badly or unpleasantly.
We played awfully.
deathlyTo an extreme degree.
The night was deathly cold.
deucedlyExtremely (used as intensives.
They re deucedly hard to find.
devilishlyIn a devilish manner.
The socialists are further handicapped if they believe that capitalists are not only wicked but also devilishly clever.
dreadfullyVery much.
I ll miss you dreadfully.
Quality of life varies enormously from one place to another.
The supply multiplied exceedingly.
extremelyTo an extreme degree.
Extremely cold.
hugelyVery much; to a very great extent.
A hugely expensive house.
immenselyTo a great extent; extremely.
Was immensely more important to the project as a scientist than as an administrator.
insanely(used as intensives) extremely.
I have to be up insanely early.
lifelesslyAs if dead.
madlyWith extreme intensity.
The boys are all madly in love with you.
markedlyIn a clearly noticeable manner.
This advice is markedly different to that last year.
mightilyVery; to a great degree.
This little town has contributed mightily to the life of the nation.
Most everyone understood.
remarkablyTo a surprising degree.
Her condition improved remarkably.
soTo the same extent used in comparisons.
I love you so.
tremendouslyTo a very great extent.
I have been helped tremendously by my family.
vastlyTo an exceedingly great extent or degree.
Business practices differ vastly from country to country.
veryPrecisely so.
The very best quality.
very muchPrecisely so.
Synonyms of "Deadly" as an adverb (23 Words)

Usage Examples of "Deadly" as an adverb

  • Deadly dull.
  • Deadly earnest.
  • Her skin was deadly pale.
  • A deadly serious remark.
Usage Examples of "Deadly" as an adverb

Associations of "Deadly" (30 Words)

antidoteA medicine taken or given to counteract a particular poison.
Laughter is a good antidote to stress.
bacteriaSingle-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be.
carcinogenicHaving the potential to cause cancer.
dangerousLikely to cause problems or to have adverse consequences.
Insecticides which are dangerous to the environment.
detrimentalCausing harm or injury.
Recent policies have been detrimental to the interests of many old people.
devastatingPhysically or spiritually devastating often used in combination.
The news came as a devastating blow.
dopeCarbonated drink flavored with extract from kola nuts dope is a southernism in the United States.
Though he wasn t an intellectual giant he was no dope either.
exotoxinA toxin that is secreted by microorganisms into the surrounding medium.
fatalHaving momentous consequences; of decisive importance- Saturday Rev.
A fatal series of events.
harmCause or do harm to.
The villains didn t harm him.
harmfulCausing or likely to cause harm.
Harmful effects of smoking.
hazardA potential source of danger.
A safety hazard.
lethalOf an instrument of certain death.
A lethal cocktail of drink and pills.
mortalA person contrasted with others regarded as being of higher status or ability.
Capacities only possible of God rather than mortals.
neurotoxinA poison which acts on the nervous system.
perniciousWorking or spreading in a hidden and usually injurious way.
The pernicious influences of the mass media.
poisonAdminister poison to a person or animal either deliberately or accidentally.
She poisoned her husband.
poisoningThe act of giving poison to a person or animal with the intent to kill.
Symptoms of poisoning may include nausea diarrhoea and vomiting.
poisonous(of a substance or plant) causing or capable of causing death or illness if taken into the body.
Poisonous chemicals.
pollutantA substance that pollutes something, especially water or the atmosphere.
Chemical pollutants.
ruinousDisastrous or destructive.
A ruinous war.
slayerSomeone who causes the death of a person or animal.
A dragon slayer.
toxicDenoting securities that are based on toxic debt and for which there is not a healthy or functioning market.
Suffering from exposure to toxic substances.
toxicityThe degree to which something is poisonous.
That was how I protected my partner from my family s toxicity.
toxinA poison of plant or animal origin, especially one produced by or derived from microorganisms and acting as an antigen in the body.
vampire(folklore) a corpse that rises at night to drink the blood of the living.
The protectionist vampires in the Congress.
venomExtreme malice and bitterness shown in someone’s attitudes, speech, or actions.
His voice was full of venom.
venomous(of an animal, especially a snake) secreting venom, or capable of injecting venom by means of a bite or sting.
Venomous snakes.
virulenceThe severity or harmfulness of a disease or poison.
The virulence of the plague.
virulentHarsh or corrosive in tone.
A virulent insect bite.
Associations of "Deadly" (30 Words)

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