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 Covering politics today is a grim dance between the vicious and the idiotic, between repulsion and despair. Megan McArdle, Washington Post, 10 May 2026 Fatu annihilated Reigns with another vicious clothesline and tossed him shoulder-first into the steel ring post. Blake Oestriecher, Forbes.com, 10 May 2026 In Round 1 versus Dallas, Hartman got so far under the skin of one of the Stars’ standouts that Jamie Benn responded with a vicious crosscheck to Hartman’s neck, then pushed him to the ice, where Benn’s stick was weaponized a few more times. Jess Myers, Twin Cities, 9 May 2026 Connecticut led New York 13-4 through the first four minutes of the third quarter, but Stewart killed the momentum with a vicious block from behind as Miller went up for a fast-break layup off of a steal. Emily Adams, Hartford Courant, 9 May 2026 See All Example Sentences for vicious
Recent Examples of Synonyms for vicious
Adjective
  • There is a brightness and its opposite, not darkness but another brightness, just as intense.
    Literary Hub, Literary Hub, 21 May 2026
  • Paxton voters are more intense in their contempt for Cornyn than vice versa.
    Rachel Monroe, New Yorker, 20 May 2026
Adjective
  • The creature-feature horror film plunges into the jungles of the Dominican Republic, where a group of road workers battling brutal conditions encounter the Ciguapa — a terrifying figure from local folklore with backward feet and the power to possess men through her gaze.
    Anna Marie de la Fuente, Variety, 15 May 2026
  • Anyone familiar with the show knows what comes next probably won't be pretty, but even diehard fans will be shocked by how brutal Scattered Hopes can be.
    Ian Stokes, Space.com, 15 May 2026
Adjective
  • The 27-year-old founder of a Sikh motorcycle club that prosecutors say was linked to the notorious Hells Angels has been sentenced for illegally dealing in firearms and unlawful possession of a machine gun.
    Marc Ramirez, USA Today, 14 May 2026
  • The Justice Department has repeatedly argued that the information sought in the subpoenas is needed to investigate possible fraud or unlawful off-label promotion of drugs.
    ABC News, ABC News, 14 May 2026
Adjective
  • Take George Mullins — 18 years old at the battle of Carentan, one of the most savage engagements of the war, where his company lost 43 of its 45 men in three days of fighting.
    Afdhel Aziz, Forbes.com, 18 May 2026
  • The perpetrators of these crimes are savage animals without a shred of humanity.
    Bobby Zirkin, Baltimore Sun, 14 May 2026
Adjective
  • The Celeste team argues that large, heavy drones pose a serious cybersecurity risk, as they could be hijacked and used for harm by malicious hackers.
    Chris Young, Interesting Engineering, 14 May 2026
  • That’s not necessarily malicious.
    Amber Harding OutKick, FOXNews.com, 14 May 2026
Adjective
  • Rice University’s Kinder Institute study found that newcomer students in the kindergarten through fifth grade age range who are eligible for intensive newcomer English programs experience a measurable academic boost, lasting up to three years after eligibility.
    Fort Worth Star-Telegram, Fort Worth Star-Telegram, 15 May 2026
  • And it is currently made, almost everywhere in the world, through a process that is energy-intensive, waste-heavy, and engineered for an environment with almost no environmental regulation.
    Afdhel Aziz, Forbes.com, 15 May 2026
Adjective
  • In Sylvie’s imagination, Nita becomes Anna, a sultry beauty with a cruel streak who has been dating the meek Christophe (Niney) while secretly engaging in an affair with their married boss, Pierre (Cassel).
    Alison Willmore, Vulture, 15 May 2026
  • The first major climb of any Grand Tour is usually a cruel dose of reality — where teams, having built around a rider over the previous week, suddenly realise those sacrifices might have been in vain.
    Jacob Whitehead, New York Times, 15 May 2026
Adjective
  • Another pair of wins from KPop Demon Hunters, which are attached to the evil boy band Saja Boys, cracked the top 10 as well, and several members – the group is made up of Andrew Choi, Neckwav, Danny Chung, Kevin Woo and Samuil Lee – are usually classified as K-pop artists.
    Hugh McIntyre, Forbes.com, 15 May 2026
  • The filmmaker’s post included a photo of himself with a puppet of Metal Sonic, an evil robot version of Sonic from the gaming franchise that was teased at the end of the third movie.
    Ryan Gajewski, HollywoodReporter, 15 May 2026

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Cite this Entry

“Vicious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vicious. Accessed 22 May. 2026.

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