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Definition of virulent
virulent
/ˈvɪr.jə.lənt/
vir · u · lent
Adverb:virulently
virulent Lexical Profile
CEFR
C1
Grade
11
Tier
2
Usage
Top 10k
Syllables
3
virulent Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Extremely severe, harmful, or infectious in its effects (of a disease, pathogen, or toxin).
Example
"Public health officials worked quickly to contain the virulent strain of influenza before winter arrived."
2
Bitterly hostile, malicious, or fiercely antagonistic.
Example
"The mayor's controversial proposal drew virulent criticism from community leaders and local residents alike."
Synonyms
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Word Origin & Etymology
Borrowed in the late 14th century from Latin virulentus ('full of poison'), derived from virus ('poison, slimy liquid, venom').
Cite this Entry
Wordmom. (2026). Definition of Virulent. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/virulent