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 In 1995's Braveheart, Byrne portrayed Smythe, a vicious solider who attempts to rape Murron (Catherine McCormack), the wife of William Wallace (Mel Gibson). Wesley Stenzel, Entertainment Weekly, 30 June 2026 The mood changed a bit when Tab Ramos took a vicious elbow to the side of his head and fractured his skull. Gabriel Sama, Mercury News, 28 June 2026 That’s still high, but moves downward mean less chance of a vicious cycle where expectations for higher inflation drive changes in behavior that create higher inflation. Stan Choe, Chicago Tribune, 27 June 2026 That party ends abruptly one night when Kara meets Ruthye (Eve Ridley), a girl seeking revenge on the vicious Brigands who killed her parents. Brian Truitt, USA Today, 24 June 2026 See All Example Sentences for vicious
Recent Examples of Synonyms for vicious
Adjective
  • During periods of intense rainfall, the risk of flooding increases, particularly in low-lying and flood-prone areas.
    NC Weather Bot, Charlotte Observer, 8 July 2026
  • Treating fear and anxiety in dogs doesn’t always require a bigger yard or a more intense exercise routine.
    Ryan Brennan, Fort Worth Star-Telegram, 7 July 2026
Adjective
  • And Addy, perhaps the most brutal American Girl story, is enslaved.
    Clare Mulroy, USA Today, 3 July 2026
  • In January, the government suppressed huge nationwide protests in a brutal crackdown that left thousands dead.
    Elizabeth Robinson, NBC news, 3 July 2026
Adjective
  • Kayden Bordley, 19, faces one count each of second-degree murder and unlawful use of a weapon, and two counts of armed criminal action, according to a Jackson County charging document.
    Caroline Zimmerman, Kansas City Star, 7 July 2026
  • The hours-long pandemonium involved some teenaged children and young adults throwing mortars, fireworks and more at those who crowded about and at police officers, a grocery store getting merchandise stolen and an unlawful assembly declared.
    Sierra van der Brug, Oc Register, 6 July 2026
Adjective
  • The Yellow Death has disfigured the population, and soldiers in white-and-red tunics serve the savage Duke of Tviot.
    Dan Piepenbring, Harpers Magazine, 30 June 2026
  • Josefowicz, in her decathlon of a performance, brought Ligeti’s savage discontinuities to the surface.
    Alex Ross, New Yorker, 29 June 2026
Adjective
  • According to the Macomb County Prosecutor's Office, 37-year-old Adam Mazur-Baker was arraigned Tuesday on one count of using a computer to commit a crime and one count of malicious use of telecommunications services.
    DeJanay Booth-Singleton, CBS News, 2 July 2026
  • This command executes malicious code inside the AppleScript directly.
    Dan Goodin, ArsTechnica, 2 July 2026
Adjective
  • But that is labor intensive, and when a fire burns thousands of acres, the time and cost involved can be too high.
    Los Angeles Times, Los Angeles Times, 9 July 2026
  • Built for expansion Aurora was used to perform the computationally intensive quantum chemistry simulations integrated into ChemGraph, while the ALCF Inference Service provided access to open-weight language models hosted on Argonne systems.
    Neetika Walter, Interesting Engineering, 9 July 2026
Adjective
  • The heat has become so unbearable in Japan that weather officials in April announced a new term for days when maximum temperatures exceed 104 degrees — kokushobi, meaning harsh or cruel heat, according to the Japan Times.
    Los Angeles Times, Los Angeles Times, 6 July 2026
  • For thousands of Venezuelans, however, the lack of definitive answers has become one of the tragedy’s cruelest consequences.
    Antonio María Delgado, Miami Herald, 3 July 2026
Adjective
  • Through Latin and early Christian usage, the word took on its modern sense of an evil supernatural spirit.
    Erik Kain, Forbes.com, 8 July 2026
  • When it was overturned, however, the United States rightly or wrongly became the evil empire to the rest of world soccer.
    Mark Sappenfield, Christian Science Monitor, 7 July 2026

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Cite this Entry

“Vicious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vicious. Accessed 10 Jul. 2026.

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