Virulent
adjective
Extremely harmful or hostile, especially due to an extreme intensity.
The virulent poison was enough to kill a fully grown man within minutes.

Often appears as...
- virulent strain
- virulent criticism
Usage tips
Formal
adjective
Extremely severe or harmful in its effects.
The virulent form of the disease killed thousands during the pandemic.

Often appears as...
- virulent strain of virus
- virulent infection
Usage tips
Formal
Technical
adjective
Bitterly hostile or antagonistic; hateful.
His virulent attack on the government's policies did not go unnoticed.

Often appears as...
- virulent criticism
- virulent hatred
Usage tips
Formal, Disapproving
adjective
Extremely harmful or hostile, especially due to an extreme intensity.
The virulent poison was enough to kill a fully grown man within minutes.

Often appears as...
- virulent strain
- virulent criticism
Usage tips
Formal
adjective
Extremely severe or harmful in its effects.
The virulent form of the disease killed thousands during the pandemic.

Often appears as...
- virulent strain of virus
- virulent infection
Usage tips
Formal
Technical
adjective
Bitterly hostile or antagonistic; hateful.
His virulent attack on the government's policies did not go unnoticed.

Often appears as...
- virulent criticism
- virulent hatred
Usage tips
Formal, Disapproving
Definition 1 of 3

Intensity and Harm
Used when describing something with a powerful negative impact that can cause serious damage.

The virulent chemical leaked into the river, destroying the ecosystem.
Negative Outcome
Implies a strong likelihood of a bad result or outcome due to the intensity.

A virulent debate ensued, ending in a shattered friendship.
Aggressive Connotation
Carries a sense of aggression or fierce animosity, often used to heighten the expression.

The candidate responded with a virulent rebuttal that silenced his critics.
Compare with
contagiousdeadharmfulinfectiouslethalmalignantpathogenicpoisonoustoxic
Video examples
Tal Danino: We can use...
and you can see these waves going from right to left across the screen. Now, our genetic program relies on a natural phenomenon called quorum sensing, in which bacteria trigger coordinated and sometimes virulent behaviors once they reach a critical density. You can observe quorum sensing in action in this movie,
Video examples
How to make pandemics...
virulent that you can't get carried on you know that you end up in sort of a dead end host essentially so they have to balance those two things out so that's just a way I cope with had the fact that we live in a world of pathogens around us you know is is it's not really in their interest
Video examples
What we know (and don't...
though proper care and rehydration therapy can significantly reduce mortality rates in patients. Fortunately, while Ebola is highly virulent, several factors limit its contagiousness. Unlike viruses that proliferate through small, airborne particles, Ebola only exists in bodily fluids,
Video examples
Ian Goldin: Navigating...
So the concerns, the xenophobic concerns of today, of migration, will be turned on their head, as we search for people to help us sort out our pensions and our economies in the future. And then, the systemic risks. We understand that these will become much more virulent,
Video examples
Quorum sensing: Bacteria...
aeruginosa this is the bacterium that kills people who have cystic fibrosis it kills immune compromised people and it causes effect infections when you get a catheter a stent or a breathing tube and the reason Pseudomonas is so virulent is because of this chemical
Video examples
How we conquered the...
Smallpox and cowpox viruses are from the same family. But when a virus infects an unfamiliar host, in this case cowpox infecting a human, it is less virulent, so Jenner decided to test whether the cowpox virus could be used to protect against smallpox.
Video examples
Chen Qiufan: A sci-fi...
that the lover you met in an immersive online game has flown halfway around the world to meet you. But now he's quarantined in the hospital, stricken with a new, extremely virulent variant of the virus.
Video examples
How Solving this Medical...
not long after all 50 sheep were injected with a particularly virulent strain this was huge especially because press from around the world came to cover the results and the reveal was
Video examples
Deadly Dinners: Fresh...
that keep live lobsters handy for boiling jarring has a cage full of Cobras cobra venom ranks among the world's most virulent poisons one bite and a human can die in minutes yet too
Video examples
Attack of the Killer...
when finished the deadly spores will burst from its tip then any ant in the vicinity will be in serious risk of death the fungus is so virulent it can wipe
Video examples
Tal Danino: We can use...
and you can see these waves going from right to left across the screen. Now, our genetic program relies on a natural phenomenon called quorum sensing, in which bacteria trigger coordinated and sometimes virulent behaviors once they reach a critical density. You can observe quorum sensing in action in this movie,
Video examples
How to make pandemics...
virulent that you can't get carried on you know that you end up in sort of a dead end host essentially so they have to balance those two things out so that's just a way I cope with had the fact that we live in a world of pathogens around us you know is is it's not really in their interest
Video examples
What we know (and don't...
though proper care and rehydration therapy can significantly reduce mortality rates in patients. Fortunately, while Ebola is highly virulent, several factors limit its contagiousness. Unlike viruses that proliferate through small, airborne particles, Ebola only exists in bodily fluids,
Video examples
Ian Goldin: Navigating...
So the concerns, the xenophobic concerns of today, of migration, will be turned on their head, as we search for people to help us sort out our pensions and our economies in the future. And then, the systemic risks. We understand that these will become much more virulent,
Video examples
Quorum sensing: Bacteria...
aeruginosa this is the bacterium that kills people who have cystic fibrosis it kills immune compromised people and it causes effect infections when you get a catheter a stent or a breathing tube and the reason Pseudomonas is so virulent is because of this chemical
Video examples
How we conquered the...
Smallpox and cowpox viruses are from the same family. But when a virus infects an unfamiliar host, in this case cowpox infecting a human, it is less virulent, so Jenner decided to test whether the cowpox virus could be used to protect against smallpox.
Video examples
Chen Qiufan: A sci-fi...
that the lover you met in an immersive online game has flown halfway around the world to meet you. But now he's quarantined in the hospital, stricken with a new, extremely virulent variant of the virus.
Video examples
How Solving this Medical...
not long after all 50 sheep were injected with a particularly virulent strain this was huge especially because press from around the world came to cover the results and the reveal was
Video examples
Deadly Dinners: Fresh...
that keep live lobsters handy for boiling jarring has a cage full of Cobras cobra venom ranks among the world's most virulent poisons one bite and a human can die in minutes yet too
Video examples
Attack of the Killer...
when finished the deadly spores will burst from its tip then any ant in the vicinity will be in serious risk of death the fungus is so virulent it can wipe
Example 1 of 10
Quote examples
Patricia Ireland
American Activist
Women are called upon to defend every bit of progress we have made against particularly virulent attack. But we must also hold out a vision, put forth a positive agenda of what women need and want and then move forward toward that dream.

Quote examples
Jock Sturges
American Photographer
A virulent, aggressive minority has decided that Americans don't know themselves what it is they should see, and need to be protected by people who are wiser than they are, even if they are only a tiny sliver of the population.

Quote examples
Sarah McBride
American Activist
Days after being sworn in as the nation's top law enforcement officer, Trump's attorney general, the virulently anti-LGBTQ Jeff Sessions, revoked lifesaving guidance promoting the protection and dignity of transgender students.

Quote examples
Jill Lepore
American Historian
Epidemiologists study patterns in order to combat infection. Stories about epidemics follow patterns, too. Stories aren't often deadly, but they can be virulent: spreading fast, weakening resistance, wreaking havoc.

Quote examples
Joe Lhota
American Politician
I still am a virulent anti-communist. It is a bad system, an immoral system, and one that takes away the rights of people and the rights of individuals. And everywhere it's gone, it's failed.

Quote examples
Helen Thomas
American Journalist
There are better ways we can transform this virulent hatred - by living our ideals, the Peace Corps, exchange students, teachers, exporting our music, poetry, blue jeans.

Quote examples
Fiona Bruce
British Journalist
In my twenties, I was virulently opposed to anyone commenting on my appearance, lest it come at the expense of my ability.

Quote examples
Ted Rall
American Cartoonist
On the ground, Pakistan is the most virulently anti-American state on the planet.

Quote examples
Peter Bergen
American Journalist
Virulent anti-Semitism is, of course, a staple of militant Islamist ideology.

Quote examples
John Connally
American Politician
In the early sixties, we were strong, we were virulent.

Quote examples
Patricia Ireland
American Activist
Women are called upon to defend every bit of progress we have made against particularly virulent attack. But we must also hold out a vision, put forth a positive agenda of what women need and want and then move forward toward that dream.

Quote examples
Jock Sturges
American Photographer
A virulent, aggressive minority has decided that Americans don't know themselves what it is they should see, and need to be protected by people who are wiser than they are, even if they are only a tiny sliver of the population.

Quote examples
Sarah McBride
American Activist
Days after being sworn in as the nation's top law enforcement officer, Trump's attorney general, the virulently anti-LGBTQ Jeff Sessions, revoked lifesaving guidance promoting the protection and dignity of transgender students.

Quote examples
Jill Lepore
American Historian
Epidemiologists study patterns in order to combat infection. Stories about epidemics follow patterns, too. Stories aren't often deadly, but they can be virulent: spreading fast, weakening resistance, wreaking havoc.

Quote examples
Joe Lhota
American Politician
I still am a virulent anti-communist. It is a bad system, an immoral system, and one that takes away the rights of people and the rights of individuals. And everywhere it's gone, it's failed.

Quote examples
Helen Thomas
American Journalist
There are better ways we can transform this virulent hatred - by living our ideals, the Peace Corps, exchange students, teachers, exporting our music, poetry, blue jeans.

Quote examples
Fiona Bruce
British Journalist
In my twenties, I was virulently opposed to anyone commenting on my appearance, lest it come at the expense of my ability.

Quote examples
Ted Rall
American Cartoonist
On the ground, Pakistan is the most virulently anti-American state on the planet.

Quote examples
Peter Bergen
American Journalist
Virulent anti-Semitism is, of course, a staple of militant Islamist ideology.

Quote examples
John Connally
American Politician
In the early sixties, we were strong, we were virulent.

Example 1 of 10
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