malignant

adjective
ma·​lig·​nant | \ mə-ˈlig-nənt How to pronounce malignant (audio) \

Definition of malignant

1 : tending to produce death or deterioration malignant malaria especially : tending to infiltrate, metastasize, and terminate fatally a malignant tumor
2a : evil in nature, influence, or effect : injurious a powerful and malignant influence
b : passionately and relentlessly malevolent : aggressively malicious the malignant tongues of gossipers
c obsolete : malcontent, disaffected

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Other Words from malignant

malignantly adverb

Examples of malignant in a Sentence

a highly malignant form of cancer a powerful and malignant influence
Recent Examples on the Web Gabriel has been dormant inside of Madison her whole life, but when her abusive husband smashes her head against a wall, Gabriel wakes up and is able to hijack her body to commit murders — hence, a malignant tumor. Jennifer Yuma, Variety, 11 Sep. 2021 These areas are often overgrown, the victims of neglect that is sometimes benign and other times malignant. BostonGlobe.com, 28 July 2021 Rhabdoid tumors that grow outside of the brain are called a malignant rhabdoid tumor, or MRT. Korin Miller, Health.com, 22 June 2021 From a tax viewpoint, most PPLI policies can be parsed into two categories, being benign and malignant. Jay Adkisson, Forbes, 28 May 2021 Fighting valiantly against other malignant actors were the normies who were shocked to be in this position, appalled by the president and those who encouraged him. Washington Post, 23 July 2021 But while Monday's statements add up to a potent international tongue-lashing, none of them suggest Beijing can expect any concrete punishment for its malignant activities. David A. Andelman, CNN, 20 July 2021 A few months back, Janelle revealed that she was diagnosed with a non-malignant form of skin cancer. Dory Jackson, PEOPLE.com, 9 July 2021 Different biomarkers are used to detect different types of malignant growths in tandem with other tests to establish a correct diagnosis. Chris Smith, BGR, 22 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'malignant.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of malignant

1542, in the meaning defined at sense 2c

History and Etymology for malignant

Late Latin malignant-, malignans, present participle of malignari

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Time Traveler for malignant

Time Traveler

The first known use of malignant was in 1542

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Dictionary Entries Near malignant

malignancy

malignant

malignant catarrh

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Statistics for malignant

Last Updated

25 Sep 2021

Cite this Entry

“Malignant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malignant. Accessed 15 Oct. 2021.

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More Definitions for malignant

malignant

adjective

English Language Learners Definition of malignant

: very serious and dangerous : tending or likely to grow and spread in a rapid and uncontrolled way that can cause death
: very evil

malignant

adjective
ma·​lig·​nant | \ mə-ˈlig-nənt How to pronounce malignant (audio) \

Kids Definition of malignant

1 : malicious
2 : likely to cause death : deadly

Other Words from malignant

malignantly adverb

malignant

adjective
ma·​lig·​nant | \ mə-ˈlig-nənt How to pronounce malignant (audio) \

Medical Definition of malignant

1 : tending to produce death or deterioration malignant malaria especially : tending to infiltrate, metastasize, and terminate fatally malignant tumors — compare benign sense 1
2 : of unfavorable prognosis : not responding favorably to treatment psychotic reactions with a malignant trend

More from Merriam-Webster on malignant

Nglish: Translation of malignant for Spanish Speakers

Britannica English: Translation of malignant for Arabic Speakers

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