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 On this occasion, Arsenal’s team and fans became equally beset by nerves — a vicious cycle of anxiety that sucked the life (and the noise) out of the Emirates Stadium. James McNicholas, New York Times, 26 Jan. 2026 Mann was insistent, however, on breaking that vicious cycle. Nathan Smith, Los Angeles Times, 26 Jan. 2026 Sky finally got the hot tag to Ripley, who immediately attacked Morgan with a series of vicious clotheslines and a fallaway slam followed by a running dropkick. Blake Oestriecher, Forbes.com, 25 Jan. 2026 As late as the 9th century, Canis Major was pictured as a fierce, vicious hunting dog. Joe Rao, Space.com, 23 Jan. 2026 See All Example Sentences for vicious
Recent Examples of Synonyms for vicious
Adjective
  • This period of intense study laid the groundwork for what would later become known as the Korean New Wave.
    Literary Hub, Literary Hub, 29 Jan. 2026
  • Shares fell during his time in government but rebounded sharply in December, reaching a record high amid intense market interest in AI.
    Sujita Sinha, Interesting Engineering, 29 Jan. 2026
Adjective
  • With the benefit of hindsight, analysts and investors have blamed much of Kraft Heinz’s downward spiral on the brutal cost-cutting strategy imposed after the merger.
    Amelia Lucas, CNBC, 31 Jan. 2026
  • Unrelenting cold in storm’s aftermath Last weekend’s historic winter storm and the brutal cold that followed have been blamed for at least 85 deaths in the US, the Associated Press reported.
    Mary Gilbert, CNN Money, 30 Jan. 2026
Adjective
  • The unlawful taking of items from a machine or device that is operated or activated by the use of coins.
    Baltimore Sun staff, Baltimore Sun, 30 Jan. 2026
  • Mississippi officials have argued that the state law is not preempted, while the RNC has urged the high court to strike down the Magnolia State’s law, along with similar ones in other states, as unlawful.
    Jack Birle, The Washington Examiner, 30 Jan. 2026
Adjective
  • Sons of Anarchy was praised for its stellar writing, operatic plotting, and cast of actors who breathed vivid life into their characters, giving even the most savage moments a dose of humanity.
    Declan Gallagher, Entertainment Weekly, 16 Jan. 2026
  • This league is a savage league.
    Anthony Chiang, Miami Herald, 22 Dec. 2025
Adjective
  • Their faltering attempt at a total crackdown—which can’t muzzle the anger and bravery of ordinary people—and its general odor of malicious incompetence, is even seeping into the White House’s hermetic media echo chamber.
    James Folta, Literary Hub, 29 Jan. 2026
  • Just like the ClickFix attacks, this malicious trickery is all about running commands that almost all users would never think to do in normal circumstances.
    Zak Doffman, Forbes.com, 29 Jan. 2026
Adjective
  • The tech could have an outsized effect on knowledge workers by automating the repetitive, data-intensive cognitive tasks that typically define those white-collar roles.
    Tom Huddleston Jr., CNBC, 30 Jan. 2026
  • Renee Nicole Good, a mother of three, was shot earlier this month while sitting in her car, while Alex Pretti, an intensive-care nurse, was killed in a separate encounter just over two weeks later.
    Becca Longmire, PEOPLE, 30 Jan. 2026
Adjective
  • Young people are growing up in a climate that can feel cruel, divided or lonely.
    Julie Ruth Owen, The Orlando Sentinel, 31 Jan. 2026
  • And cutting nurses’ health care benefits is just cruel.
    Voice of the People, New York Daily News, 31 Jan. 2026
Adjective
  • There are several elements in Bridgerton season 4 that resemble the story line of Cinderella, from enchanting balls to gloves and slippers — and even an evil stepmother.
    Jordana Comiter, PEOPLE, 31 Jan. 2026
  • The details in the Russian collusion hoax file is demonic—this is evil stuff.
    , FOXNews.com, 30 Jan. 2026

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Cite this Entry

“Vicious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vicious. Accessed 2 Feb. 2026.

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