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Definition of vicious

vicious

/ˈvɪʃ.əs/
vi · cious

Adverb:viciously
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vicious Lexical Profile

vicious Game Scores & Validity

• adjective

1

Deliberately cruel, malicious, or spiteful in character or action.

Example

"The candidate became the target of a vicious smear campaign in the weeks leading up to the election."


2

Dangerously aggressive, fierce, or unruly (especially of an animal).

Example

"The postal worker refused to approach the porch because a vicious guard dog was barking behind the gate."


3

Extremely severe, intense, or unpleasant in effect or degree.

Example

"She had to stay home in a darkened room all afternoon because of a vicious migraine."


4

Immoral, depraved, or given to vice.

Example

"The nineteenth-century reformer wrote extensively about saving young people from leading a vicious life."

Synonyms
View all synonyms for vicious
Antonyms
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Word Nuance & Usage

Do not confuse 'vicious' (cruel, spiteful, or fierce) with 'viscous' (having a thick, sticky consistency between solid and liquid).

• Rhymes for vicious

Word Origin & Etymology

Borrowed in the 14th century from Old French 'vicios', from Latin 'vitiosus' ('faulty, defective, corrupt, or wicked'), derived from 'vitium' ('fault, defect, or vice').

Cite this Entry


Wordmom. (2026). Definition of Vicious. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/vicious
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