malicious

adjective

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

Did you know?

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.
Anyone who is accused of making a threat of violence could face a misdemeanor charge of malicious use of a telecommunications device and/or two felony charges of communicating a threat of terrorism and calling a bomb threat. Elle Meyers, CBS News, 13 Apr. 2026 Concerns arose about what would happen to the infrastructure of the internet if hackers, or other people with malicious intent, use the model. Davis Giangiulio, CNBC, 13 Apr. 2026 In worst-case scenarios, malicious code can exploit weaknesses in your phone, create backdoor access and pull in even more data without your knowledge. Kurt Knutsson, FOXNews.com, 9 Apr. 2026 Over a four-week period starting on December 12, Black Lotus observed more than 290,000 distinct IP addresses sending at least one DNS request to the malicious APT28 DNS resolver. Dan Goodin, ArsTechnica, 8 Apr. 2026 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

Browse Nearby Words

Cite this Entry

“Malicious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malicious. Accessed 15 Apr. 2026.

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster