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Malignant synonyms

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Deadly, causing actual or metaphorical death; causing the undoing of a claim, assertion, or legal document (“a fatal flaw in the pleading”). See also fatal defect. Deadly, causing actual or metaphorical death; causing the undoing of a claim, assertion, or legal document (“a fatal flaw in the pleading”). See also fatal defect.
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  1. Deadly, causing actual or metaphorical death; causing the undoing of a claim, assertion, or legal document (“a fatal flaw in the pleading”). See also fatal defect. Deadly, causing actual or metaphorical death; causing the undoing of a claim, assertion, or legal document (“a fatal flaw in the pleading”). See also fatal defect.
  2. Causing ruin or destruction; disastrous:
  3. Very destructive; most unfortunate; disastrous
Extremely harmful; devastating:
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  1. Extremely harmful; devastating:
  2. Causing or capable of causing death; fatal or deadly
Very harmful; destructive
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  1. Very harmful; destructive
  2. Absolute; utter:
  3. Aiming or wanting to kill; implacable:
(Of an animal) Inedible due to containing poison; poisonous to eat
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  1. (Of an animal) Inedible due to containing poison; poisonous to eat
  2. Capable of harming or killing by poison:
  3. Harmful or destructive:
Merely negative; not helpful
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  1. Merely negative; not helpful
  2. Causing or producing destruction; destroying
  3. Tending or likely to cause destruction
Of or relating to struggle within a nation, organization, or group.
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  1. Of or relating to struggle within a nation, organization, or group.
  2. Deadly or harmful to both sides of a group involved in a conflict, as a civil war; mutually destructive or harmful
  3. Mutually destructive; ruinous or fatal to both sides.
Used as an intensive:
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  1. Used as an intensive:
  2. Liable or subject to death; not immortal:
  3. Relentlessly hostile; implacable:
  1. Producing pestilence or plague; pestilent
  2. Of, causing, or likely to cause pestilence or infection
  3. Pernicious; dangerous; harmful
Harmful to health or well-being; injurious
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  1. Harmful to health or well-being; injurious
  2. Having a harmful effect; injurious:
  3. Harmful often in a subtle or unexpected way (as for example deleterious effects, deleterious to health).
Deteriorated from the normal or standard
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  1. Deteriorated from the normal or standard
  2. Containing errors or alterations, especially ones that prevent proper understanding or use:
  3. Venal or dishonest:
By, for, or about black people as a group; specif., in the U.S., by, for, or about black Americans
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  1. By, for, or about black people as a group; specif., in the U.S., by, for, or about black Americans
  2. Being of the color black, producing or reflecting comparatively little light and having no predominant hue.
  3. Evil; wicked:
(Archaic) Spiteful; malicious
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  1. (Archaic) Spiteful; malicious
  2. Expressing malice or contemptuous hate.
  3. Full of despite.
Angry, irritable, disagreeable, etc.
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  1. Angry, irritable, disagreeable, etc.
  2. Morally bad or wrong; wicked:
  3. Characterized by or indicating future misfortune; ominous:
Full of hatred.
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  1. Full of hatred.
  2. (Archaic) Feeling or showing hate; malicious; malevolent
  3. Nasty, unpleasant, objectionable, etc.
Having a harmful influence:
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  1. Having a harmful influence:
  2. Wishing evil or harm to others; having or showing ill will; malicious
(Law) Done with malice.
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  1. (Law) Done with malice.
  2. Having, showing, or caused by malice; spiteful; intentionally mischievous or harmful
  3. Having the nature of or resulting from malice; deliberately harmful; spiteful:
Showing ill will; malicious
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  1. Showing ill will; malicious
  2. Intending or threatening harm or ill will; malevolent:
  3. Evil or harmful in nature or effect:
Expressing spite or malice:
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  1. Expressing spite or malice:
  2. (Slang) Hard to cope with; difficult or troublesome:
  3. Ignoble; base:
Exasperatingly difficult to solve or handle:
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  1. Exasperatingly difficult to solve or handle:
  2. Very dangerous, troublesome, grievous, etc.
  3. Mean; malicious; ill-humored
Capable of harming or killing by poison:
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  1. Capable of harming or killing by poison:
  2. (Of an animal) Inedible due to containing poison; poisonous to eat
  3. Full of ill will; malicious or spiteful:
Filled with, prompted by, or showing spite; malicious.
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  1. Filled with, prompted by, or showing spite; malicious.
  2. Full of or showing spite; purposefully annoying; malicious
(Zool.) Having a poison gland or glands and able to inflict a poisonous wound by biting or stinging
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  1. (Zool.) Having a poison gland or glands and able to inflict a poisonous wound by biting or stinging
  2. Secreting and transmitting venom:
  3. Full of or containing venom:
Faulty or defective:
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  1. Faulty or defective:
  2. Having bad or harmful habits; unruly
  3. Malicious; spiteful; mean
Severe and distressing:
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  1. Severe and distressing:
  2. (Slang) Strikingly good, effective, or skillful:
  3. Morally bad or wrong; acting or done with evil intent; depraved
Bad-tempered or malicious
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  1. Bad-tempered or malicious
  2. In a bad mood; irritable or cranky.
  3. Mean, spiteful, or overbearing.
Portending harm; ominous.
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  1. Portending harm; ominous.
  2. Causing distress, death, or ruin; deadly
Extremely accurate; unerring:
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  1. Extremely accurate; unerring:
  2. Absolute; utter:
  3. Aiming or wanting to kill; implacable:
Harmful to the mind or morals; corrupting:
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  1. Harmful to the mind or morals; corrupting:
  2. Harmful to living things; injurious to health:
  3. Morally injurious; corrupting; unwholesome
(Rare) Wicked; evil
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  1. (Rare) Wicked; evil
  2. Causing great injury, destruction, or ruin; fatal; deadly
  3. Tending to cause death or serious injury; deadly:
Likely to cause death; deadly
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  1. Likely to cause death; deadly
  2. Causing or likely to cause epidemic disease:
  3. (Rare) Contagious; pestilential
  1. Producing pestilence or plague; pestilent
  2. Of, causing, or likely to cause pestilence or infection
  3. Pernicious; dangerous; harmful
Extremely hostile or malicious:
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  1. Extremely hostile or malicious:
  2. Characterized by, causing, or promoting the rapid onset of severe illness. Used of a disease or toxin.
  3. Extremely poisonous or injurious; deadly
Find another word for malignant. In this page you can discover 40 synonyms, antonyms, idiomatic expressions, and related words for malignant, like: cancerous, fatal, lethal, deadly, poisonous, destructive, internecine, mortal, pestilential, deleterious and corrupt.