MALICIOUS Synonyms: 88 Similar and Opposite Words

malicious

adjective

mə-ˈli-shəs

Definition of malicious

as in vicious

having or showing a desire to cause someone pain or suffering for the sheer enjoyment of it the neighborhood chatterbox has again been spreading malicious gossip

Synonyms & Similar Words

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Example Sentences

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.

Recent Examples of malicious Two letters redirect actions MuTRAP is a backdoor attack, also known as a Trojan attack, in which malicious behavior is embedded in a model and activated only when a specific trigger appears. — Neetika Walter, Interesting Engineering, 21 Oct. 2026 None of this excuses Chris’ malicious behavior, not just toward Carrie but toward her future stepsister, Brooklyn (Rowan Danielle), and the school as a whole, mostly via a fake Instagram account devoted to smearing students and faculty alike. — ArsTechnica, 21 Oct. 2026 On Wednesday, two IP addresses from Canada and the Netherlands, which have been flagged as malicious, were frequently connecting to the honeypots, apparently to probe for vulnerabilities. — Michael Kan, PC Magazine, 21 Oct. 2026 An agent may have broader access or authority than its assignment requires, which can enable a mistaken or malicious instruction to trigger a payment, expose sensitive information or disrupt an essential system. — Shekhar Iyer, Forbes.com, 20 Oct. 2026 See All Example Sentences for malicious

Recent Examples of Synonyms for malicious

Adjective

The vicious cycle of the current model, of course, is that to become marketable a team needs to get and retain good players, and to do that a school has to spend money, which cycles the whole thing back to the start.

— Dana O’Neil, CNN Money, 24 Oct. 2026
Governments were expected to rescue struggling banks, which held large amounts of sovereign debt, creating a vicious cycle.

— Jenni Reid,Chloe Taylor, CNBC, 23 Oct. 2026

Definition of vicious

Adjective

Participants fell into their roles a little too well and, after a prisoner rebellion, increasingly cruel forms of punishment from the guards and a number of students suffering mental breakdowns, the experiment was ended on the sixth day.

— Marlow Stern, Variety, 25 Oct. 2026
But these townswomen — whether the undersexed Bakerwoman (Ella Bruccoleri ) or the prim, cruel busybody the Tailor’s Wife (a deliciously scheming Elizabeth Debicki) — are deeply unhappy with their own lot in life.

— Angelica Jade Bastién, Vulture, 22 Oct. 2026

Definition of cruel

Adjective

Manchester police say over the weekend, vandals wreaked havoc leaving several hateful, antisemitic, racist and homophobic slurs on people's property.

— Paul Burton, CBS News, 19 Oct. 2026
Ossoff went a step further, accusing Collins himself of amplifying hateful content and saying that his former congressional aide had intervened on behalf of a Holocaust denier.

— AJC.com, AJC.com, 9 Oct. 2026

Definition of hateful

Adjective

With American Family Field rocking, Ashby reared back and threw a nasty curve that Díaz tried to hold up on.

— Jacob Lev, CNN Money, 24 Oct. 2026
Of course, there has been some criticism of this plan, as France is experiencing some pretty nasty civil unrest at the moment, but the game will go ahead, with the Saints having been in the country for a few days already.

— Matt Reigle OutKick, FOXNews.com, 22 Oct. 2026

Definition of nasty

Adjective

Mahershala Ali leads the resistance against the malevolent powers that be as a rebel bandit.

— David Fear, Rolling Stone, 23 Oct. 2026
The films leap from 1994 to 1978 to 1666 as high schooler Deena (Kiana Madeira) and her friends battle a malevolent witch from the town’s past to save her girlfriend, Sam (Olivia Scott Welch).

— Sara Netzley, Entertainment Weekly, 11 Oct. 2026

Definition of malevolent

Adjective

It would be seen as a work of merciless autofiction in the vein of Karl Ove Knausgaard, and it would be discussed, as his books are, as aggressive, antisocial, and spiteful.

— B. D. McClay, New Yorker, 19 Oct. 2026
In 1932, Carlos (Milo Quifes) is a young man in Grenada at a time when Spain is lurching uncomfortably towards an ever-increasing spiteful intolerance of homosexuality.

— Baz Bamigboye, Deadline, 16 Oct. 2026

Definition of spiteful

Adjective

Experts say the state-of-the-art Ion robotic bronchoscopy would have indicated whether the tumor was malignant and possibly whether cancer had spread to the lymph nodes.

— Arkansas Online, Arkansas Online, 18 Oct. 2026
Before enrollment, people volunteering for the study would be screened for early signs of cancer because TB-4 triggers vessel growth and cell migration, which might exacerbate malignant growths.

— CNN Money, CNN Money, 13 Oct. 2026

Definition of malignant

Browse Nearby Words

malice

malicious

maliciously

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“Malicious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/malicious. Accessed 27 Oct. 2026.

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Synonyms of malicious

adjective

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