English Reference

Word

vicious

Phoneticsvi·cious, stress on the first syllable

US/ˈvɪʃəs/

UK/vˈɪʃəs/

Definitions

01violent and cruel

B2 · Upper Intermediate

adj. very violent and cruel, often with the intent to hurt someone badly.

adj. characterized by a desire to inflict pain or suffering; deliberately cruel or violent.

“The newspaper reported a vicious attack on a young man in the park.”

“The dictator was known for his vicious treatment of political rivals, often using the secret police to silence any form of dissent.”

Antonyms

02aggressive animals

B2 · Upper Intermediate

adj. describing an animal that is dangerous and likely to bite or attack.

adj. dangerously aggressive or savage, typically used of animals prone to unprovoked attacks.

“Keep your distance because that dog can be quite vicious with strangers.”

“The hikers were warned that the mother bear could become vicious if she felt her cubs were being threatened by their presence.”

Antonyms

tamedocile

03severe or intense

B2 · Upper Intermediate

adj. very strong, severe, or unpleasant.

adj. possessing a high degree of intensity or severity, often in a way that causes physical or mental distress.

“She had a vicious headache that lasted for the entire afternoon.”

“The sailors struggled to keep the ship upright as a vicious storm battered the hull with relentless waves.”

Antonyms

04immoral

C2 · Proficiency Archaic · Literary

adj. having a bad character or doing things that are morally wrong.

adj. characterized by vice, immorality, or depravity.

“The old stories warn against leading a vicious life full of greed.”

“In the Victorian novel, the antagonist is depicted as a vicious character whose soul has been corrupted by a lifetime of indulgence and crime.”

Antonyms

Collocations

Common phrases and expressions where native English speakers use the word “vicious” in context.

Verb

01. launch a vicious assault

“The opposition party launched a vicious assault on the government's new economic policy.”

verb + adj + noun

Adjective

02. vicious and cruel

“The dictator was known for his vicious and cruel treatment of political dissidents.”

adj + and + adj

03. vicious dog

“A sign on the gate warned visitors to beware of the vicious dog.”

adj + noun

Noun

04. vicious attack on the victim

“The police are looking for witnesses to the vicious attack on the victim that occurred last night.”

adj + noun + prep + noun

05. vicious circle of debt

“High interest rates trapped the small business in a vicious circle of debt.”

adj + noun + of + noun

06. vicious cycle of poverty

“Many families find it impossible to break out of the vicious cycle of poverty without external support.”

adj + noun + of + noun

Adverb

07. particularly vicious rumor

“A particularly vicious rumor about the CEO's health caused the company's stock price to plummet.”

adv + adj + noun

08. vicious campaign

09. vicious circle

Real-World Examples

“He added: “For more than a week, the rightwing press, politicians and the far right have hounded Jason with the most vicious racism.”
The Guardian 16 Aug 2026
“Fewer people has therefore resulted in a vicious circle of fewer services and jobs in 'Empty Spain'.”
The Local 14 Aug 2026
“Lord Woolley, principal of Homerton College at Cambridge, said Arday had been subjected to a "vicious witch hunt".”
BBC News 16 Aug 2026

Etymology

PIE word *dwóh₁ From Middle English vicious, from Anglo-Norman vicious, (modern French vicieux), from Latin vitiōsus, from vitium (“fault, vice”). Equivalent to vice + -ous.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

ADJECTIVE

vicious(C1)

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Frequent
Level
C1 · AdvancedOxford
Updated

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