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 But Roy’s story of Annie (Arjun Raina), a New Delhi architecture student caught in a vicious cycle of failing and repeating his studies, gradually reveals itself as a sharp and poignant portrayal of youth, deftly poised between hope and cynicism. Jill Goldsmith, Deadline, 18 Aug. 2026 Lawsuits, bureaucratic battles, boisterously divisive council arguments and vicious social media debates have been part of Bloomfield life for years, and intensified during Danielle Wong’s contentious time as mayor. Don Stacom, Hartford Courant, 18 Aug. 2026 After the crew leaves the island with the sun god’s cattle, the seas are vicious, scary, and violent. Wisdom Iheanyichukwu, Vanity Fair, 17 Aug. 2026 To add insult to injury, the inflammation obesity causes also sets in motion a vicious cycle that can promote yet more weight gain. Literary Hub, 17 Aug. 2026 See All Example Sentences for vicious
Recent Examples of Synonyms for vicious
Adjective
  • Utilities have raised rates to pay for wildfire prevention and recovery as climate change has made the blazes more intense and frequent.
    Sophie Austin, Fortune, 25 Aug. 2026
  • Electrolyte beverages can help replenish hydration after an intense workout or stomach bug.
    Stephanie Brown, Verywell Health, 25 Aug. 2026
Adjective
  • Within a span of four months in Fort Worth last year, Watkins and Snellings were killed in similarly brutal attacks in the Near Southside and Historic Southside sections of the city.
    Emerson Clarridge, Fort Worth Star-Telegram, 28 Aug. 2026
  • Even so, when investor confidence broke in 1997, the adjustment was swift and brutal.
    MICHAEL PETTIS, Foreign Affairs, 28 Aug. 2026
Adjective
  • Legal experts say such a move would probably be swiftly blocked by courts, as would any unlawful deployment of military troops to polls.
    Kevin Rector, Los Angeles Times, 23 Aug. 2026
  • The suit alleges that Paramount’s unlawful termination has caused him some $4 million in economic damages.
    Gene Maddaus, Variety, 21 Aug. 2026
Adjective
  • Cole, who has to maneuver his way around 20 savage crew members, each of whom will need to be killed, doesn’t waste a homicidal movement.
    Owen Gleiberman, Variety, 19 Aug. 2026
  • The savage battles of Iwo Jima and Okinawa had already demonstrated the ferocity with which Japanese forces would defend their homeland.
    James M. Scott, Time, 10 Aug. 2026
Adjective
  • That leaves a short window during which malicious activity can contaminate the prediction machinery again.
    Atharva Gosavi, Interesting Engineering, 28 Aug. 2026
  • An attacker can then register the site and plant malicious instructions on it.
    Dan Goodin, ArsTechnica, 27 Aug. 2026
Adjective
  • By the twentieth century, intensive farming practices had left the South dangerously vulnerable to erosion, producing depleted swaths of land where kudzu would later flourish.
    The Editors, JSTOR Daily, 26 Aug. 2026
  • The next day, Alex Pretti, an intensive-care nurse and a lifelong Catholic, was shot and killed by federal agents.
    Bill McKibben, New Yorker, 26 Aug. 2026
Adjective
  • Having Sheridan actually be a cruel person was one of the key audience expectations the writer-director hoped to flip in the pursuit of laughs.
    William Earl, Variety, 28 Aug. 2026
  • But Triage does have a moment in which an ember of the old cruel optimism flickers.
    Charles Finch, The Atlantic, 28 Aug. 2026
Adjective
  • Presumably everybody wants the evidence to hold people who commit serious crimes accountable, but nobody wants to turn into the evil empire in the process.
    Jack Dolan, Los Angeles Times, 26 Aug. 2026
  • Her parents refuse to see that there is something unnatural about their new baby boy and that an evil other presence haunts their stately home.
    Tanya Fedak, Variety, 26 Aug. 2026

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Cite this Entry

“Vicious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vicious. Accessed 31 Aug. 2026.

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