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 These shortages increase costs and a vicious cycle for folks who need a rung. Arkansas Online, 9 Sep. 2026 Nobody comes off well; if anything, the snooty German Jews almost seem more vicious than the right-wing plotters, who are presented as mercenary and power-hungry rather than ideological. Literary Hub, 9 Sep. 2026 The dog court resumed taking on the backlog of vicious dog cases in June. Carlos E. Castañeda, CBS News, 8 Sep. 2026 One of them in particular, portrayed with vicious snark by Vicky Krieps, revels in the moral decay of her times, thirsting for blood. Carlos Aguilar, Variety, 5 Sep. 2026 See All Example Sentences for vicious
Recent Examples of Synonyms for vicious
Adjective
  • Broadly, the rule of thumb is to drink it during periods of intense competition (to allow for muscle recovery) while avoiding it during periods of training (to promote muscle development).
    Jacob Whitehead, New York Times, 8 Sep. 2026
  • Expect Missouri to come out sharper and fired up, as both teams will be for this intense rivalry.
    PJ Green September 8, Kansas City Star, 8 Sep. 2026
Adjective
  • When everything changed, as the dust literally settled on the most brutal terror attack on United States soil, the prevailing impulse among NFL owners was to play the games.
    Michael Silver, New York Times, 11 Sep. 2026
  • The cuts and the freezing of public funding for the film industry have been brutal for Argentine cinema.
    Roberto Prieto, Variety, 11 Sep. 2026
Adjective
  • He is charged with official misconduct in the first degree, which is punishable by up to 12 months behind bars, if convicted, and unlawful access to a computer in the fourth degree, which carries a maximum sentence of 90 days.
    Josh Wood, Louisville Courier Journal, 3 Sep. 2026
  • Investigators accused him of obstruction of justice, unlawful contracting and, among other things, claiming $127,630 in expenses linked to fictitious missions and plane tickets for nearly a dozen trips.
    Jacqueline Charles, Miami Herald, 3 Sep. 2026
Adjective
  • Bryan Singer’s ingenious thriller is both a graceful callback to ’50s potboilers and a savage modernization of them.
    Declan Gallagher, Entertainment Weekly, 3 Sep. 2026
  • 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
Adjective
  • After engaging with the box, the user sees a line of text, often obscured in a way to mask any malicious commands.
    Dan Goodin, ArsTechnica, 11 Sep. 2026
  • The rap star has a malicious prosecution case pending against the lawyer in federal court in New York.
    Nancy Dillon, Rolling Stone, 11 Sep. 2026
Adjective
  • The result should be better performance at the chip's limits, for graphics-intensive apps and games, and for extended multitasking.
    Brian Westover, PC Magazine, 10 Sep. 2026
  • Researchers can use it to run complex simulations, analyze large datasets, and develop compute-intensive AI applications.
    Kaif Shaikh, Interesting Engineering, 9 Sep. 2026
Adjective
  • Like her, Americans are also so tired of being screwed by an administration that’s not only grossly incompetent and cruel but corrupt as well.
    Sun Sentinel Editorial Board, Sun Sentinel, 6 Sep. 2026
  • Rather than heroic, these costly and horribly uncertain stunts come across callous and cruel.
    Richard Lawson, HollywoodReporter, 3 Sep. 2026
Adjective
  • The event cast Democrats as too left wing, describing them as communists, anti-American or even evil.
    Arkansas Online, Arkansas Online, 10 Sep. 2026
  • Reuniting Bullock and Kidman as Sally and Gillian Owens, the dark fantasy rom-com catches up with the sisters 28 years after their last face-off with evil forces.
    Alison Foreman, IndieWire, 8 Sep. 2026

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Cite this Entry

“Vicious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vicious. Accessed 15 Sep. 2026.

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