Standard Lemma guide

virulent

adj · 7 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈvɪɹ(j)ʊl(ə)nt/
  • Received-Pronunciation: /-ɹ(j)ə-/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /ˈvɪɹ(j)ələnt/
  • CMU ARPABET: V IH1 R AH0 L AH0 N T Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Of animals, plants, or substances: extremely venomous or poisonous.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: harmless, nonvirulent

2

adj

Meaning 2

Extremely hostile or malicious; intensely acrimonious.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

Examples

  • The politicians were virulent in their hatred of the president.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Of a disease or disease-causing agent: malignant, able to cause damage to the host.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: benign, nonvirulent

4

adj

Meaning 4

Of a pathogen: replicating within its host cell, then immediately causing it to undergo lysis.

Definition source: English Wiktionary via Wiktextract

Topics: biology, microbiology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adjective

Meaning 5

infectious; having the ability to cause disease

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: avirulent

6

adjective satellite

Meaning 6

harsh or corrosive in tone

Definition source: Princeton WordNet 3.0

Examples

  • an acerbic tone piercing otherwise flowery prose
  • a barrage of acid comments
  • her acrid remarks make her many enemies
  • bitter words
  • blistering criticism
  • caustic jokes about political assassination, talk-show hosts and medical ethics
  • a sulfurous denunciation
  • a vitriolic critique

Meaning relationships

Synonyms: acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, vitriolic

Antonyms: none provided

7

adjective satellite

Meaning 7

extremely poisonous or injurious; producing venom

Definition source: Princeton WordNet 3.0

Examples

  • venomous snakes
  • a virulent insect bite

Meaning relationships

Synonyms: deadly, venomous

Antonyms: none provided

History

Etymology

PIE word *wisós From Middle English virulent (“leaking or seeping pus, purulent; (of putrefaction) extremely severe (sense uncertain)”) [and other forms], borrowed from Latin vīrulentus (“poisonous”), from vīrus (“poison; venom; slime, slimy liquid; stinking smell; nasty taste”) (ultimately from Proto-Indo-European *wisós (“poison; slime; fluidity”)) + -ulentus (suffix meaning ‘abounding in, full of’, forming adjectives). Sense 4 (“of a pathogen: replicating within its host cell, then immediately causing it to undergo lysis”) is derived from French virulent, which was first used in this sense by the French biologist François Jacob (1920–2013) and his co-authors in a 1953 article.

Across languages

Translations

51 source translations are retained for this English entry.

  • Bulgarian: силно отровен (silno otroven) — extremely venomous or poisonous
  • German: hochgiftig — extremely venomous or poisonous
  • Northern Kurdish: jehrewî — extremely venomous or poisonous
  • Norwegian Bokmål: giftig — extremely venomous or poisonous
  • Polish: jadowity — extremely venomous or poisonous
  • Portuguese: virulento — extremely venomous or poisonous
  • Serbo-Croatian: вирулѐнтно — extremely venomous or poisonous
  • Serbo-Croatian: virulèntno — extremely venomous or poisonous
  • Bulgarian: злобен (zloben) — extremely hostile or malicious; intensely acrimonious
  • Bulgarian: враждебен (vraždeben) — extremely hostile or malicious; intensely acrimonious
  • Czech: nepřátelský — extremely hostile or malicious; intensely acrimonious
  • Finnish: katkera — extremely hostile or malicious; intensely acrimonious
  • Finnish: vihamielinen — extremely hostile or malicious; intensely acrimonious
  • French: virulent — extremely hostile or malicious; intensely acrimonious
  • German: bösartig — extremely hostile or malicious; intensely acrimonious
  • German: boshaft — extremely hostile or malicious; intensely acrimonious
  • Norwegian Bokmål: ondskapsfull — extremely hostile or malicious; intensely acrimonious
  • Norwegian Bokmål: giftig — extremely hostile or malicious; intensely acrimonious
  • Norwegian Bokmål: virulent — extremely hostile or malicious; intensely acrimonious
  • Polish: zjadliwy — extremely hostile or malicious; intensely acrimonious
  • Romanian: virulent — extremely hostile or malicious; intensely acrimonious
  • Serbo-Croatian: вирулѐнтно — extremely hostile or malicious; intensely acrimonious
  • Serbo-Croatian: virulèntno — extremely hostile or malicious; intensely acrimonious
  • Bulgarian: болестотворен (bolestotvoren) — malignant, able to cause damage to the host
  • Catalan: virulent — malignant, able to cause damage to the host
  • Czech: virulentní — malignant, able to cause damage to the host
  • Czech: nakažlivý — malignant, able to cause damage to the host
  • Esperanto: virulenta — malignant, able to cause damage to the host
  • Finnish: tappava — malignant, able to cause damage to the host
  • Finnish: tarttuva — malignant, able to cause damage to the host
  • Finnish: vahingollinen — malignant, able to cause damage to the host
  • French: virulent — malignant, able to cause damage to the host
  • Georgian: გადამდები (gadamdebi) — malignant, able to cause damage to the host
  • Georgian: სასიკვდილო (sasiḳvdilo) — malignant, able to cause damage to the host
  • Georgian: სენიანი (seniani) — malignant, able to cause damage to the host
  • German: virulent — malignant, able to cause damage to the host
  • German: extrem ansteckend — malignant, able to cause damage to the host
  • German: bösartig — malignant, able to cause damage to the host
  • Hungarian: virulens — malignant, able to cause damage to the host
  • Macedonian: заразен (zarazen) — malignant, able to cause damage to the host
  • Norwegian Bokmål: virulent — malignant, able to cause damage to the host
  • Polish: złośliwy — malignant, able to cause damage to the host
  • Portuguese: virulento — malignant, able to cause damage to the host
  • Romanian: virulent — malignant, able to cause damage to the host
  • Russian: заразный (zaraznyj) — malignant, able to cause damage to the host
  • Serbo-Croatian: вирулѐнтно — malignant, able to cause damage to the host
  • Serbo-Croatian: virulèntno — malignant, able to cause damage to the host
  • Polish: złośliwy — of a pathogen: replicating within its host cell, then immediately causing it to undergo lysis
  • Portuguese: virulento — of a pathogen: replicating within its host cell, then immediately causing it to undergo lysis
  • Serbo-Croatian: вирулѐнтно — of a pathogen: replicating within its host cell, then immediately causing it to undergo lysis
  • Serbo-Croatian: virulèntno — of a pathogen: replicating within its host cell, then immediately causing it to undergo lysis