malicious

[muh-lish-uhs] / məˈlɪʃ əs /

ADJECTIVE

hateful

Synonyms

STRONGEST

malevolent malignant mischievous nasty pernicious petty spiteful vengeful venomous vicious virulent wicked

WEAK

awful bad-natured baleful beastly bitter catty cussed deleterious despiteful detrimental envious evil evil-minded green green-eyed gross ill-disposed injurious jealous low malign mean noxious ornery poisonous rancorous resentful uncool

Antonyms

STRONGEST

aiding assisting decent forgiving friendly gentle good harmless helpful kind liking loving moral nice pleasant pleasing useful

WEAK

benevolent likeable sympathetic thoughtful

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.

Meyers saw embedding a tiny AI model directly into malicious code infecting networks as a natural tactic to be explored by hackers.

From Barron's • Apr. 10, 2026

She brought a civil-rights suit for false arrest, malicious prosecution, and conspiracy.

From Slate • Apr. 6, 2026

Studying the data, engineers from the company realized that some of the malicious traffic was coming from an employee’s home address.

From The Wall Street Journal • Apr. 3, 2026

The worry isn’t so much that AI will replace cybersecurity tools; rather, malicious actors will use AI to get through the security systems.

From Barron's • Mar. 27, 2026

“Still, I was being malicious, stirring things up between the two of you. I’m so sorry.”

From "The Red Car to Hollywood" by Jennie Liu

Vocabulary lists containing malicious

The SAT: Words to Capture Tone, List 2

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Fake It 'Til You Make It: Synonyms for "False"

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The New SAT: Words to Capture Tone

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!