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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
is not unknown
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is not unknown" is correct and usable in written English.
It can be used to indicate that something is recognized or acknowledged, often in a context where one might expect it to be unfamiliar. Example: "The concept of artificial intelligence is not unknown to the general public, as it has been widely discussed in media and literature."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
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
Thievery is not unknown.
News & Media
Abqaiq is not unknown to terrorists.
News & Media
But violence against foreigners is not unknown.
News & Media
Hiring private planes is not unknown.
News & Media
As a character, Maurice is not unknown around the state.
News & Media
The use of dames, in public health, is not unknown.
News & Media
The Canadian border is not unknown to terrorists.
News & Media
The taking of life during interrogation is not unknown here.
News & Media
Still, the Canadian border is not unknown to terrorists.
News & Media
Charging for access to nature is not unknown.
News & Media
He is not unknown to the outside world.
News & Media
Expert writing Tips
Best practice
Use "is not unknown" to subtly imply that a concept, while perhaps not widely discussed, has some level of recognition or precedence. This can add a layer of sophistication to your writing.
Common error
Avoid stacking multiple negative constructions. While "is not unknown" is acceptable, avoid phrases like "is not not known" as they create convoluted and confusing sentences.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is not unknown" functions as a form of understatement or litotes, where an affirmative is expressed by the negation of its contrary. It indicates that something is recognized or acknowledged to some extent. Ludwig AI confirms its correct usage.
Frequent in
News & Media
60%
Science
20%
Formal & Business
10%
Less common in
Encyclopedias
3%
Wiki
3%
Social Media
4%
Ludwig's WRAP-UP
The phrase "is not unknown" is a grammatically sound and frequently used expression to indicate that something is recognized or acknowledged. Ludwig AI confirms the accuracy and common usage of this phrase, especially in news, science, and formal writing. It functions as a form of understatement. When using it, consider alternatives like "is familiar" or "is recognized" for directness, but appreciate the subtle implication of prior, even if limited, awareness that "is not unknown" provides.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is not unfamiliar
Maintains a similar tone but emphasizes the existing level of knowledge.
is familiar
Directly states that something is known, removing the double negative.
is recognized
Focuses on the acknowledgment or acceptance of something.
is recognized
Emphasizes the recognition of something.
is acknowledged
Highlights the formal or public recognition of something.
is established
Suggests that something is well-known and accepted.
is well-established
Indicates something is firmly recognized or accepted.
is no secret
Implies widespread knowledge of something.
is not new
Highlights that something has been known for some time.
is understood
Focuses on the comprehension or awareness of something.
FAQs
How can I use "is not unknown" in a sentence?
The phrase "is not unknown" indicates that something is recognized or acknowledged. For example, "The concept of climate change "is not unknown" to the general public."
What can I say instead of "is not unknown"?
You can use alternatives such as "is familiar", "is recognized", or "is not unfamiliar" depending on the context.
Is it better to use "is not unknown" or "is known"?
While both are grammatically correct, "is not unknown" often implies a degree of subtlety or understatement, suggesting that something may not be widely recognized but still has some level of awareness. "is known" is a more direct statement of fact.
What is the tone conveyed by "is not unknown"?
The phrase "is not unknown" often conveys a tone of understatement or mild surprise, suggesting that a concept, while perhaps not prominent, has some level of recognition or historical precedent.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested