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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
is deadly
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is deadly" is correct and usable in written English.
It can be used to describe something that is lethal or has the potential to cause death. Example: "The venom of this snake is deadly, and it can kill a human within hours if not treated."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(7)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
Pakistan is deadly serious".
News & Media
This is deadly earnest.
News & Media
The combination is deadly.
News & Media
She is deadly.
News & Media
The overall effect is deadly.
News & Media
His reply is deadly serious.
News & Media
This precedent is deadly.
News & Media
Anthrax is deadly.
News & Media
And that is deadly.
News & Media
Silence is deadly.
News & Media
Single vision is deadly.
News & Media
Expert writing Tips
Best practice
When using "is deadly" to describe something that is not literally lethal, ensure the context makes it clear that you're speaking metaphorically. For example, "procrastination is deadly to productivity."
Common error
Avoid using "is deadly" too frequently in casual conversation, as it can diminish the impact when describing genuinely dangerous situations. Use stronger adjectives or expressions when literal danger is not involved, or use a less strong expression to communicate that something is unpleasant.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is deadly" functions as a predicate adjective, describing the subject's capacity to cause death or severe harm. Ludwig's examples illustrate both literal and figurative usages, such as "Anthrax is deadly" and "Silence is deadly".
Frequent in
News & Media
68%
Wiki
9%
Science
7%
Less common in
Formal & Business
5%
Unknown/unmatched sources
5%
Huffington Post
1%
Ludwig's WRAP-UP
The phrase "is deadly" is a common and grammatically sound expression used to emphasize extreme danger or lethality. According to Ludwig, its usage spans both literal and metaphorical contexts, warning of potential harm or highlighting severe consequences. While typically neutral in register, overuse in casual conversation should be avoided to maintain its impact. The most frequent contexts are News & Media, Wiki, and Science. Ludwig AI confirms the correctness of the phrase and illustrates its usage with numerous real-world examples. Semantically, alternatives such as "is lethal" or "poses a mortal threat" can be used depending on the desired nuance.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is lethal
Replaces "deadly" with a synonym emphasizing the capacity to cause death.
poses a mortal threat
Emphasizes the dangerous nature and potential for causing death.
is life-threatening
Highlights the severity of the danger, indicating a risk to life.
is gravely dangerous
Focuses on the severe level of risk and hazard involved.
is a significant hazard
Shifts focus to the presence of a notable danger or risk.
carries a high risk
Highlights the probability of negative outcomes or harm.
is fraught with danger
Emphasizes that the situation is filled with potential risks.
is extremely perilous
Uses a more formal term to describe the high level of danger.
represents a clear and present danger
A more emphatic way of saying there's an immediate threat.
has fatal consequences
Focuses on the ultimate result or outcome of the situation, highlighting potential death.
FAQs
How can I use "is deadly" in a sentence?
You can use "is deadly" to describe something lethal or dangerous, such as "The venom of that snake is deadly". It can also be used metaphorically, for example, "Complacency is deadly to innovation".
What are some alternatives to saying "is deadly"?
Alternatives include "is lethal", "is life-threatening", or "poses a mortal threat", depending on the specific context.
When is it appropriate to use "is deadly" metaphorically?
It is appropriate to use "is deadly" metaphorically when emphasizing the severely negative impact of something, even if it doesn't cause physical death. For example, "apathy is deadly to community engagement".
What is the difference between saying something "is deadly" and saying it "is dangerous"?
While both terms indicate potential harm, "is deadly" suggests a greater severity and a higher likelihood of causing death. "Is dangerous" implies a broader range of potential harms, not necessarily fatal.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested