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Definitions

malignant

[muh-lig-nuhnt] / məˈlɪg nənt /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Glioblastoma is the most common malignant brain tumor in adults.

From BBC • May 13, 2026

Physicians recognized this cell-killing property as a potential weapon against malignant growth.

From The Wall Street Journal • Apr. 24, 2026

So everything he is doing now is about legacy, and with a malignant narcissist who knows that he may not be long for this earth, the danger that comes with those realizations is acute.

From Salon • Mar. 29, 2026

Mary Shelley’s 1818 novel has Dr. Frankenstein bicker with his creature about her potential existence before deciding against it in fear that “she might become ten thousand times more malignant than her mate.”

From Los Angeles Times • Mar. 4, 2026

To Franklin, Lee was “jealous, suspicious, malignant, and quarrelsome.”

From "George Washington, Spymaster" by Thomas B. Allen




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