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 Ejiofor, the Big East Player of the Year, snatched the momentum with a rare 3-pointer from the top of the key before a vicious block on Demary, which led to a flashy dunk from Dillon Mitchell (nine points, nine rebounds, two steals). Joe Arruda, Hartford Courant, 15 Mar. 2026 Obviously, Missé is devastated that her brother was killed in such a vicious and public manner. Brian Moylan, Vulture, 13 Mar. 2026 The play unfolds as a series of battles, where the unaccomplished George and the bitterly disappointed Martha exchange vicious and demeaning insults, using Nick and Honey as the unsuspecting pawns in their war for supremacy. Pam Kragen, San Diego Union-Tribune, 10 Mar. 2026 The joke, though, is that the consumer world is every bit as vicious. Daniel Fienberg, HollywoodReporter, 10 Mar. 2026 See All Example Sentences for vicious
Recent Examples of Synonyms for vicious
Adjective
  • In an unexpected move, OpenAI announced its video generating service Sora will be shutting down soon as the company comes under intense pressure from rival Anthropic.
    Elizabeth Robinson, NBC news, 25 Mar. 2026
  • Eucerin’s Advanced Repair Lotion focuses on exactly that, combining intense hydration with ingredients that help reinforce the skin’s natural protective layer.
    Hana Hong, Glamour, 25 Mar. 2026
Adjective
  • Still, the timeline for elimination came as news to guard Josh Giddey in the locker room after Wednesday’s brutal 157-137 blowout loss to the Philadelphia 76ers.
    Julia Poe, Chicago Tribune, 28 Mar. 2026
  • Iran’s brutal regime retains a solid grip in Tehran, in Iraq through proxies, and in Lebanese society through Hezbollah.
    Nick Paton Walsh, CNN Money, 27 Mar. 2026
Adjective
  • Heifler was charged with ferdeal counts of unlawful possession of a destructive devices and unlawful making of destructive devices, officials said.
    Rocco Parascandola, New York Daily News, 27 Mar. 2026
  • Stanford School of Medicine prohibits unlawful discrimination on the basis of race, color, national or ethnic origin, or any other characteristic protected by applicable law.
    Mary Kekatos, ABC News, 27 Mar. 2026
Adjective
  • The loss of books is minor, almost trivial, in light of all the horrors and violence unleashed by this senseless war, but the potential loss of these books is a sad reminder that we’re all affected and implicated in America’s savage flailings.
    James Folta, Literary Hub, 17 Mar. 2026
  • Conan O'Brien hit almost every note on Sunday — savage, playful, heartfelt and dumb.
    ABC News, ABC News, 16 Mar. 2026
Adjective
  • The settlement resolves a 2023 lawsuit in which Flynn sought at least $50 million and asserted that the criminal case against him amounted to a malicious prosecution.
    Arkansas Online, Arkansas Online, 26 Mar. 2026
  • The most dire real-life cyberattacks on hospitals involve ransomware, a class of malicious software that encrypts data and locks down computers and networks, demanding significant amounts of cash for the promise of relief.
    Jeffrey Tully, Fortune, 26 Mar. 2026
Adjective
  • These are the military's most elite forces, who have undergone intensive physical and technical training for this type of mission.
    CBS News, CBS News, 28 Mar. 2026
  • Radar works in these conditions but is power-intensive for small drones.
    Nitin Sanket, The Conversation, 27 Mar. 2026
Adjective
  • Some countries have laws administering what critics believe are cruel punishments or place undue restrictions on women and minorities.
    Rachel Royster, Fort Worth Star-Telegram, 27 Mar. 2026
  • While Tony coddles his own bruised ego, there is clearly a greater reason for the cruel hijinks, which comes in the form of some significant cash.
    David John Chávez, Mercury News, 27 Mar. 2026
Adjective
  • After tracking it down almost two decades later, Prince Adam is whisked back across space to defend his home planet against the evil forces of Skeletor.
    Glenn Garner, Deadline, 28 Mar. 2026
  • Black is reprising his role as the sassy, if evil, Bowser in the sequel.
    Amaris Encinas, USA Today, 28 Mar. 2026

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Cite this Entry

“Vicious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vicious. Accessed 1 Apr. 2026.

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