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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 Naya falls down as the bear bangs on the thin wood separating it from its prey, roaring in sudden, vicious fury. Ben Travers, IndieWire, 17 July 2025 Thus, the sport was locked in a vicious cycle where advertisers weren’t interested because there weren’t enough viewers with the lack of airtime. Kanika Talwar, Footwear News, 17 July 2025 Threats to democratic institutions and threats to LGBTQ rights are mutually reinforcing, generating a vicious cycle that strengthens authoritarian control. Ari Shaw, Foreign Affairs, 17 July 2025 In the wake of the vicious attack, a huge pool of blood was left trailing outside the store. Nicholas Williams, New York Daily News, 16 July 2025 See All Example Sentences for vicious
Recent Examples of Synonyms for vicious
Adjective
  • The finish is long and intense, with lingering orchard fruits and spices.
    Joseph V Micallef, Forbes.com, 16 July 2025
  • People should avoid long and intense outdoor activity and stay inside when possible, NWS advises.
    Maia Pandey, jsonline.com, 15 July 2025
Adjective
  • This created a growing population of vulnerable, undocumented workers in the 1960s and ’70s who increasingly faced brutal apprehensions.
    Jimmy Patino, San Diego Union-Tribune, 23 July 2025
  • After the brutal ascent of Ventoux, sprinters get their spotlight.
    Kilty Cleary, MSNBC Newsweek, 23 July 2025
Adjective
  • First, opponents argued that the rule was unlawful and that Congress would need to amend the statute to implement the changes proposed by DHS in its rule.
    Stuart Anderson, Forbes.com, 21 July 2025
  • He was arrested at 12:22 a.m. Friday for misdemeanor unlawful speeding and driving under the influence, a first-degree misdemeanor.
    Edgar Thompson, The Orlando Sentinel, 19 July 2025
Adjective
  • As savage Arctic cold was getting ready to surge south across North America, vivid imagery based on data from weather models showed us what was going to happen.
    Tom Yulsman, Discover Magazine, 27 Dec. 2022
  • The 2023 grand marshal is former Arizona Democratic congresswoman Gabby Giffords, gravely wounded in a savage mass shooting in 2011 that also killed six people.
    Los Angeles Times, Los Angeles Times, 27 Dec. 2022
Adjective
  • Attacks are now surging across the U.S., targeting citizens with malicious texts, emails and popups.
    Zak Doffman, Forbes.com, 22 July 2025
  • Because the malicious screen is transparent, there are no visual cues to suggest anything suspicious is happening.
    Kurt Knutsson, FOXNews.com, 21 July 2025
Adjective
  • Critics question whether a battery swap network—capital intensive, dependent on fleet adoption, and distributed across so many different markets—can scale profitably.
    Clay Chandler, Fortune, 19 July 2025
  • An intensive moisturiser that delivers maximum hydration, Revision’s DermProtect Barrier Defense™ also replenishes natural lipids, and enhances moisture retention.
    Angela Lei, Forbes.com, 13 July 2025
Adjective
  • Each of us should demand our local leaders challenge every one of the immoral and cruel state laws and the Gestapo-like raids and inhumane detainments carried out by ICE agents.
    Letters to the Editor, The Orlando Sentinel, 15 July 2025
  • Even critics who considered his policies cruel and racist – and there were many – admitted that behind the bluster there was the charm of a true believer.
    Los Angeles Times, Los Angeles Times, 12 July 2025
Adjective
  • From the twins and their parents to evil fiancées and housekeepers, the characters have gained a cult following since their release, with some fans using them as inspiration for their outfits, summer mood boards, and interior design.
    Claire Hoppe Norgaard, Better Homes & Gardens, 15 July 2025
  • Historically, antisemitic conspiracy theories have revolved around the idea that a shadowy and evil Jewish elite secretly controls the world, and ritualistic child abuse is a common trope within them.
    Shane Croucher, MSNBC Newsweek, 14 July 2025

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Cite this Entry

“Vicious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vicious. Accessed 29 Jul. 2025.

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