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 story follows vicious ex-con, Max Cady (Bardem) and his revenge plot against married couple Tom (Patrick Wilson) and Anna Bowden (Adams). Erik Kain, Forbes.com, 26 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 Her desire to promote her Protestant faith, along with a yearning to expand England’s political authority, helped fuel a vicious campaign to take control of Ireland, where the Reformation’s teachings had not taken hold. Peter C. Mancall, The Conversation, 24 June 2026 Surely there were those in attendance, and those watching, who conjured horrible thoughts of Patriots receiver Darryl Stingley being left permanently paralyzed from the chest down after taking a vicious hit from the Oakland Raiders’ Jack Tatum during a 1978 preseason game. Steve Buckley, New York Times, 23 June 2026 See All Example Sentences for vicious
Recent Examples of Synonyms for vicious
Adjective
  • Indie Shakes managing director David Melville distills his production around scenes of intense conflict.
    Theater Critic, Los Angeles Times, 1 July 2026
  • As the planet warms, extreme heat events are becoming more common, intense and long-lasting.
    Andrew Freedman, CNN Money, 1 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
  • Jazzlyn Johnson, a spokesperson for Johnson, said in an email that Sanchez-Munoz had been charged with one count of second-degree felony murder, five counts of unlawful use of a weapon and five counts of armed criminal action.
    Nathan Pilling, Kansas City Star, 30 June 2026
  • The policies Goode violated include unlawful harassment discrimination policy, professional conduct, code of conduct and mobile data access.
    Matt Schooley, CBS News, 29 June 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
  • The jockeys take on months of intensive training in order to ride in the Ladies’ Race.
    Samantha Conti, Footwear News, 2 July 2026
  • On the flip side, semiconductor manufacturing is one of the most complex and energy-intensive industrial processes in the world, with emissions projected to reach 277 million metric tons of CO₂ equivalent by 2030.
    New Atlas, New Atlas, 2 July 2026
Adjective
  • Swift moved on from one Brit to the next, quietly dating actor Joe Alwyn from 2017 to 2023, while the world spent back-to-back cruel summers without Taymerica.
    Savannah Walsh, Vanity Fair, 26 June 2026
  • This is particularly gratifying given the absurd and cruel trolling the young actress received from the toxic corners of internet fandom leading up to the film’s release.
    James Hibberd, HollywoodReporter, 26 June 2026
Adjective
  • There is so much evil and suffering in the world, so much conniving and malicious intent, and the self is, at least, a familiar foe.
    Meghan O’Gieblyn, Harpers Magazine, 30 June 2026
  • When the monsters reveal an evil agenda that goes beyond becoming movie stars, the Minions are forced to battle them to save the world.
    Frank Scheck, HollywoodReporter, 30 June 2026

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Cite this Entry

“Vicious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vicious. Accessed 4 Jul. 2026.

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