Definition of viciousnext
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as in unlawful
not conforming to a high moral standard; morally unacceptable a truly vicious person detested by almost everyone

Synonyms & Similar Words

Antonyms & Near Antonyms

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Synonym Chooser

How does the adjective vicious differ from other similar words?

Some common synonyms of vicious are corrupt, degenerate, iniquitous, nefarious, and villainous. While all these words mean "highly reprehensible or offensive in character, nature, or conduct," vicious may directly oppose virtuous in implying moral depravity, or may connote malignancy, cruelty, or destructive violence.

a vicious gangster

Where would corrupt be a reasonable alternative to vicious?

The synonyms corrupt and vicious are sometimes interchangeable, but corrupt stresses a loss of moral integrity or probity causing betrayal of principle or sworn obligations.

city hall was rife with corrupt politicians

In what contexts can degenerate take the place of vicious?

The words degenerate and vicious can be used in similar contexts, but degenerate suggests having sunk to an especially vicious or enervated condition.

a degenerate regime propped up by foreign powers

When could iniquitous be used to replace vicious?

While in some cases nearly identical to vicious, iniquitous implies absence of all signs of justice or fairness.

an iniquitous system of taxation

When can nefarious be used instead of vicious?

In some situations, the words nefarious and vicious are roughly equivalent. However, nefarious suggests flagrant breaching of time-honored laws and traditions of conduct.

the nefarious rackets of organized crime

When is it sensible to use villainous instead of vicious?

Although the words villainous and vicious have much in common, villainous applies to any evil, depraved, or vile conduct or characteristic.

a villainous assault

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 vicious The vicious climax in the house, involving the ultimate parental sacrifice, segues to a coda back in Egypt, where all the threads are satisfyingly tied together. David Rooney, HollywoodReporter, 16 Apr. 2026 But the explosive anger, vicious vendettas, and festering class resentments expressed so powerfully in season one remain. Natasha O'Neill, Vanity Fair, 16 Apr. 2026 Part of the vicious cycle of addiction is returning to the same haunts, the same friends, and the same circumstances that spurred the spiral into drug use. Boston Herald Editorial Staff, Boston Herald, 15 Apr. 2026 This heat then speeds up the reactions, creating even more heat in a vicious cycle. New Atlas, 15 Apr. 2026 See All Example Sentences for vicious
Recent Examples of Synonyms for vicious
Adjective
  • The area that would bear the president’s name has been subject to some of the most intense fighting of the modern age, with tens of thousands of Ukrainian and Russian troops killed in the Donbas over the past few years.
    Brady Knox, The Washington Examiner, 22 Apr. 2026
  • What keeps it from feeling too intense or drying for combination skin is the cushion of tea tree leaf water, which helps calm inflammation.
    Christa Joanna Lee, Allure, 22 Apr. 2026
Adjective
  • Seventy percent of tomatoes consumed in the United States come from Mexico, where the weather was also brutal, according to the American Farm Bureau Federation (AFBF).
    Vanessa Yurkevich, CNN Money, 17 Apr. 2026
  • For Asmae El Moudir in The Mother of All Lies, that meant using miniatures to coax out details of her family’s experiences during Morocco’s brutal Years of Lead.
    Alison Willmore, Vulture, 17 Apr. 2026
Adjective
  • The unlawful taking of any part or accessory affixed to the interior or exterior of a motor vehicle in a manner which would make the item an attachment of the vehicle or necessary for its operation.
    Baltimore Sun staff, Baltimore Sun, 17 Apr. 2026
  • Killing people on the high seas, supporting clearly unlawful military operations, and participating in the destruction of civilian infrastructure — while civilians are present — are wrong and un-American.
    Letters to the Editor, The Orlando Sentinel, 17 Apr. 2026
Adjective
  • This time playing an underling rather than a boss, Hoskins gave one of the best performances of his career in what remains a high point for Jordan as well, a lyrical and poignant yet savage film noir filled with regret, rage, and unrequited love.
    Jim Hemphill, IndieWire, 20 Apr. 2026
  • The famed African American journalist investigated lynchings across the South and wrote about the savage incidents that the white press had already explained away.
    Case Thorp, The Orlando Sentinel, 5 Apr. 2026
Adjective
  • Benjamin Parris, also 19, of Greenville, South Carolina, is charged with two counts of malicious destruction of property of $1,000 or more but less than $20,000 and two counts of conspiracy to commit malicious destruction of property of $1,000 or more but less than $20,000.
    Joseph Buczek, CBS News, 22 Apr. 2026
  • Instead of using obvious malicious code, the attackers built the installer with legitimate tools and layered the attack in stages.
    Kurt Knutsson, FOXNews.com, 21 Apr. 2026
Adjective
  • Residents returning to southern villages and Beirut suburbs find entire neighborhoods reduced to rubble, with buildings flattened and infrastructure destroyed by weeks of intensive strikes.
    Kareem Chehayeb, Los Angeles Times, 17 Apr. 2026
  • One such system required only 90 million Toffoli gates, a resource-intensive operation that’s currently a prohibitively major challenge to deliver.
    Stephen Clark, ArsTechnica, 17 Apr. 2026
Adjective
  • Dahl’s books are fanciful and imaginative, but also dark, cynical, and mean (and, unfortunately, often reflected his real-life ugliness), spinning stories in which gruesome and unpleasant fates befell rotten kids, and adults were frequently selfish, cruel, and not to be trusted.
    Wilson Chapman, IndieWire, 10 Apr. 2026
  • Violating that trust is both cruel and unlawful.
    DeJanay Booth-Singleton, CBS News, 10 Apr. 2026
Adjective
  • Besides, anyone who doesn’t agree with the left is said to be evil, so anything progressives do to destroy, or at least restrain that evil, is justified.
    Chris Roemer, Baltimore Sun, 9 Apr. 2026
  • Fifteen years later, her sister Merry faces her family’s dark past with a journalist uncovering the nature of the evil force that undid them.
    Rebecca Rubin, Variety, 9 Apr. 2026

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Cite this Entry

“Vicious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.grautoblog.com/thesaurus/vicious. Accessed 24 Apr. 2026.

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