malicious

adjective

ma·​li·​cious mə-ˈli-shəs How to pronounce malicious (audio)
: having or showing a desire to cause harm to someone : given to, marked by, or arising from malice
malicious gossip
maliciously adverb
maliciousness noun

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Malicious, Malevolent, and Malice

Malicious and malevolent are close in meaning, since both refer to ill will that desires to see someone else suffer. But while malevolent suggests deep and lasting dislike, malicious usually means petty and spiteful. Malicious gossipers are often simply envious of a neighbor's good fortune. Vandals may take malicious pleasure in destroying and defacing property but usually don't truly hate the owners. Malice is an important legal concept, which has to be proved in order to convict someone of certain crimes such as first-degree murder.

Examples of malicious in a Sentence

… she is an inspired hater, and thrills to malicious descriptions of long-forgotten, nameless individuals whose bad luck it was to live near her, or to have met her socially. Joyce Carol Oates, New York Times Book Review, 5 Nov. 2000
A cunning and malicious crook who suckered him without half trying. Philip Roth, American Pastoral, 1997
Frank sensed her discomfort and took a certain malicious pleasure in it, enacting all the while his perfect innocence. John Updike, The Afterlife, 1994
a malicious distortion of the truth the neighborhood chatterbox has again been spreading malicious gossip
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
When Tony's security company faces an attack from unknown malicious forces, the family goes on the run across Europe while figuring out who is after them, according to Paramount. Mary Walrath-Holdridge, USA Today, 4 Sep. 2025 This growth includes the expansion of distribution centers, attack surfaces, and opportunities for malicious actors. Leeza Garber, MSNBC Newsweek, 3 Sep. 2025 By 2028, Gartner predicts, 25% of enterprise breaches will be traced back to AI agents, including abuse from both internal and external malicious actors. Sage Lazzaro, Fortune, 3 Sep. 2025 The best way to safeguard yourself from malicious links that install malware, potentially accessing your private information, is to have antivirus software installed on all your devices. Kurt Knutsson, FOXNews.com, 2 Sep. 2025 See All Example Sentences for malicious

Word History

Etymology

see malice

First Known Use

13th century, in the meaning defined above

Time Traveler
The first known use of malicious was in the 13th century

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Cite this Entry

“Malicious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malicious. Accessed 10 Sep. 2025.

Kids Definition

malicious

adjective
ma·​li·​cious mə-ˈlish-əs How to pronounce malicious (audio)
1
: doing mean things for pleasure
2
: done just to be mean
malicious gossip
maliciously adverb
maliciousness noun

Legal Definition

malicious

adjective
ma·​li·​cious mə-ˈli-shəs How to pronounce malicious (audio)
: given to, marked by, or arising from malice
malicious destruction of property
maliciously adverb
maliciousness noun

More from Merriam-Webster on malicious

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