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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 That new life fueled a vicious rally attempt after the break – starting with a corner opportunity in the first two minutes. Tom Mulherin, Boston Herald, 10 Sep. 2025 Egyptian influencers linked to intelligence fronts launched vicious personal attacks, including ethnic slurs, against the Saudi royal family and graphic insults targeting the crown prince. Khaled Hassan, MSNBC Newsweek, 10 Sep. 2025 This was an outrageously heinous and vicious act. Tanasia Kenney, Charlotte Observer, 9 Sep. 2025 Trading a whodunit for a slow-motion train wreck about an endearing criminal whose very, very bad decisions inspire the ire of a vicious biker gang and the titular task force, Task stars Mark Ruffalo, Tom Pelphrey, Emilia Jones and Silvia Dionicio. Mikey O'Connell, HollywoodReporter, 8 Sep. 2025 See All Example Sentences for vicious
Recent Examples of Synonyms for vicious
Adjective
  • This blaze is intense enough that firefighters used water lines to moisten the soil around trees and wrapped their trunks with fire-resistant foil blankets.
    Kurt Snibbe, Oc Register, 20 Sep. 2025
  • From time to time, there’s still an intense demand for anything connected to the Fab Four, and countless films, books, and albums have been issued in the decades since the musicians split.
    Hugh McIntyre, Forbes.com, 19 Sep. 2025
Adjective
  • Given the Normans’ brutal treatment of the English and their subsequent expansion across the Mediterranean, there are undeniable parallels between 1066 and later spasms of European expansionism.
    Will Collins, The Washington Examiner, 19 Sep. 2025
  • The eight-episode thriller, which premieres September 19 on ViX, follows Nolasco Black (Bichir), a forensic dentist investigating brutal murders in 19th century Veracruz who discovers evidence that the infamous London killer has crossed the Atlantic.
    Veronica Villafañe, Forbes.com, 19 Sep. 2025
Adjective
  • In November, jurors convicted Martinez of unlawful compensation and a related conspiracy charge.
    Douglas Hanks, Miami Herald, 15 Sep. 2025
  • The world’s highest court, the International Court of Justice, has ruled that there is a plausible risk of genocide in Gaza, and that Israel’s occupation and apartheid against Palestinians are unlawful.
    Chris Gardner, HollywoodReporter, 12 Sep. 2025
Adjective
  • My father was a thirty-two-year-old tank commander who had crossed to occupied France shortly after D-Day, fought in the savage battle for Caen and then on through northern France.
    Literary Hub, Literary Hub, 17 Sep. 2025
  • This thrilling prequel stars Anya Taylor-Joy as Furiosa and Alyla Browne as young Furiosa, who is abducted by the savage warlord Dementus (Chris Hemsworth) — leader of the Biker Horde — and spends the next decade in captivity plotting her revenge and escape.
    Charlotte Walsh, People.com, 1 Sep. 2025
Adjective
  • The best way to safeguard yourself from malicious links that install malware, potentially accessing your private information, is to have strong antivirus software installed on all your devices.
    Kurt Knutsson, FOXNews.com, 20 Sep. 2025
  • If the vulnerability had been discovered by, or fallen into the hands of, malicious hackers, the fallout could have been devastating.
    Kevin Purdy, ArsTechnica, 20 Sep. 2025
Adjective
  • Poore pivoted to other ventures to make ends meet after the storm struck, including trail clearing, trail education and intensive workshops on trail maintenance.
    Graham Hurley, CNN Money, 21 Sep. 2025
  • Dumplings can be time (and labor) intensive to prepare.
    Alana Al-Hatlani, Southern Living, 21 Sep. 2025
Adjective
  • Sena was crying in pain, and so were her new owners, who even questioned whether keeping her alive was cruel.
    Maria Azzurra Volpe, MSNBC Newsweek, 20 Sep. 2025
  • Directed by Oliver Laxe, who’s been making waves at Cannes for years, the movie is funny and warm in parts, cruel and cold in others.
    Shirley Li, The Atlantic, 20 Sep. 2025
Adjective
  • Maybe evil is a spiritual substance in and of itself.
    Rivka Galchen, New Yorker, 21 Sep. 2025
  • Kang drew inspiration from gut, traditional Korean folk dancers who performed rituals to protect communities from demons and evil spirits.
    Naman Ramachandran, Variety, 20 Sep. 2025

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Cite this Entry

“Vicious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vicious. Accessed 22 Sep. 2025.

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