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

Need another word that means the same as “pernicious”? Find 31 synonyms and 30 related words for “pernicious” in this overview.

The synonyms of “Pernicious” are: insidious, subtle, baneful, deadly, pestilent, harmful, damaging, destructive, injurious, hurtful, detrimental, deleterious, dangerous, adverse, inimical, unhealthy, unfavourable, bad, evil, baleful, wicked, malign, malevolent, malignant, noxious, poisonous, cancerous, corrupting, ruinous, lethal, fatal

Pernicious as an Adjective

Definitions of "Pernicious" as an adjective

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

  • Working or spreading in a hidden and usually injurious way.
  • Exceedingly harmful.
  • Having a harmful effect, especially in a gradual or subtle way.

Synonyms of "Pernicious" as an adjective (31 Words)

adverseContrary to your interests or welfare.
Taxes are having an adverse effect on production.
badFeeling physical discomfort or pain tough is occasionally used colloquially for bad.
A bad chess player.
balefulHaving a harmful or destructive effect.
A baleful look.
banefulDeadly or sinister.
The baneful effects of envy and jealousy.
cancerousAffected by or showing abnormalities characteristic of cancer.
A cancerous growth.
corruptingTouched by rot or decay.
Corrupt judges and their corrupting influence.
damagingHaving a detrimental effect on someone or something.
Damaging allegations of corruption.
dangerousInvolving or causing danger or risk; liable to hurt or harm.
Insecticides which are dangerous to the environment.
deadlyExtremely poisonous or injurious; producing venom.
A series of deadly attacks.
deleteriousCausing harm or damage.
Divorce is assumed to have deleterious effects on children.
destructiveNegative and unhelpful.
A policy that is destructive to the economy.
detrimental(sometimes followed by `to’) causing harm or injury.
Recent policies have been detrimental to the interests of many old people.
evilOf a force or spirit embodying or associated with the forces of the devil.
An evil influence.
fatalCausing death.
Such doctrines if true would be absolutely fatal to my theory.
harmfulCausing or likely to cause harm.
Sugars which can be harmful to the teeth.
hurtfulCausing distress to someone’s feelings.
His hurtful remarks.
inimicalTending to obstruct or harm.
An inimical critic.
injuriousHarmful to living things.
Food which is injurious to health.
insidiousProceeding in a gradual, subtle way, but with very harmful effects.
Insidious pleasures.
lethalVery harmful or destructive.
The Krakatoa eruption was the most lethal on record.
malevolentHaving or exerting a malignant influence.
The glint of dark malevolent eyes.
malignOf a disease malignant.
Prompted by malign motives.
malignant(of a tumour) tending to invade normal tissue or to recur after removal; cancerous.
In the hands of malignant fate.
noxiousInjurious to physical or mental health.
Noxious chemical wastes.
pestilentDestructive to life; deadly.
A pestilential malignancy in the air.
poisonousMarked by deep ill will; deliberately harmful.
Poisonous chemicals.
ruinousCosting far more than can be afforded.
A ruinous effect on the environment.
subtleMaking use of clever and indirect methods to achieve something.
Subtle lighting.
unfavourableLikely to lead to an adverse outcome.
Single mothers are often the target of unfavourable press attention.
unhealthyNot having or showing good health.
An unhealthy climate.
wickedExtremely unpleasant.
A wicked sense of humour.

Usage Examples of "Pernicious" as an adjective

  • The pernicious influences of the mass media.

Associations of "Pernicious" (30 Words)

antidoteA remedy that stops or controls the effects of a poison.
There is no known antidote to the poison of the pufferfish.
counterproductiveHaving the opposite of the desired effect.
Child experts fear the Executive s plans may prove counterproductive.
damagingCausing harm or injury.
New cars are less damaging to the environment.
deadlyExceedingly harmful.
Her skin was deadly pale.
deleteriousHarmful to living things.
Deleterious chemical additives.
detrimentalTending to cause harm.
Recent policies have been detrimental to the interests of many old people.
devastatingPhysically or spiritually devastating often used in combination.
She had a devastating wit.
exotoxinA toxin that is secreted by microorganisms into the surrounding medium.
fatalHaving momentous consequences; of decisive importance.
Such doctrines if true would be absolutely fatal to my theory.
harmfulCausing or likely to cause harm.
Harmful effects of smoking.
injurious(of language) maliciously insulting; libellous.
Food which is injurious to health.
lethal(in a sporting context) very accurate or skilful.
A lethal injection.
libelous(used of statements) harmful and often untrue; tending to discredit or malign.
mercuryTemperature measured by a mercury thermometer.
The mercury was falling rapidly.
mortalCausing or liable to cause death; fatal.
For three mortal days it rained.
noxiousInjurious to physical or mental health.
Noxious ideas.
poisonKill by its poison.
Poison someone s mind.
poisoningThe act of giving poison to a person or animal with the intent to kill.
Symptoms of poisoning may include nausea diarrhoea and vomiting.
poisonousExtremely unpleasant or malicious.
Poisonous hate.
pollutantA substance that pollutes something, especially water or the atmosphere.
Chemical pollutants.
prejudicialCausing harm or injury.
The proposals were considered prejudicial to the city centre.
ruinousExtremely harmful; bringing physical or financial ruin.
The cost of their ransom might be ruinous.
toxicDenoting securities that are based on toxic debt and for which there is not a healthy or functioning market.
Toxic chemicals.
toxicityThe quality of being very harmful or unpleasant in a pervasive or insidious way.
That was how I protected my partner from my family s toxicity.
toxinA poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species.
unhealthyHarmful to health.
His skin looked pale and unhealthy.
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.
virulentHarsh or corrosive in tone.
Staphylococcus aureus is a common organism whose virulent strains are causing problems.

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