Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
has not known
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has not known" is correct and usable in written English.
It can be used to indicate that someone has not experienced or been aware of something up to the present time. Example: "She has not known the joy of traveling until now."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
Australia has not known a recession in a quarter-century.
News & Media
It is a kind of horror that Bali has not known in recent times.
News & Media
"Solidarity," says one fabric, advocating a concept that Congo has not known in years.
News & Media
CNBC's audience has not known anything but general stock market growth until recently.
News & Media
Spain has not known political fervour like this since the end of the Franco dictatorship 36 years ago.
News & Media
"Everyone between the age of ten and thirty-five has not known peace, and therefore they don't believe in it.
News & Media
It seems like an impossible love story, but he has a kindness and intelligence that she has not known before".
News & Media
Ever since, Ms. Hoera's family has not known whether to consider Mr. Chavez a victim or a suspect.
News & Media
Everyone between the age of ten and thirty-five has not known peace and therefore does not believe in it".
News & Media
What Kenya has not known is the type of prolonged civil war and state failure that have racked its neighbours.
News & Media
Americans have not chosen well from the British commentary, which is corrupted by fear-mongering and ignorance, within a generation that has not known any other arrangement.
Expert writing Tips
Best practice
Use "has not known" to emphasize a lack of past experience that has implications for the present or future.
Common error
Avoid using "has not known" when "did not know" or "does not know" is more appropriate for the intended timeframe. For example, use "did not know" when referring to a specific point in the past.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has not known" functions as a verb phrase in the present perfect tense, indicating a state or condition that began in the past and continues to the present. It expresses a lack of prior experience or awareness, as illustrated in Ludwig's examples.
Frequent in
News & Media
52%
Science
26%
Formal & Business
10%
Less common in
Wiki
5%
Academia
5%
Reference
2%
Ludwig's WRAP-UP
In summary, "has not known" is a grammatically correct and frequently used phrase to indicate a lack of past experience or awareness continuing into the present. According to Ludwig AI, the phrase sees common usage across various contexts and registers, from formal news reporting to scientific literature. Pay attention to ensure appropriate timeframe and avoid temporal confusion. Alternatives such as "has never known" or "is unaware of" can provide nuanced options depending on the desired emphasis.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
has never known
Emphasizes the complete absence of prior experience.
has not experienced
Directly refers to a lack of having gone through a particular event or situation.
has not encountered
Focuses on the absence of direct engagement or meeting with something.
is unaware of
Focuses on the present state of lacking knowledge, rather than the past absence of experience.
remains unfamiliar with
Highlights a continuing lack of acquaintance or direct experience.
has yet to discover
Indicates that something is still in the future to be known or experienced.
is unacquainted with
Indicates a lack of personal knowledge or familiarity.
had no knowledge of
Shifts the focus to a past state of lacking specific information.
is a stranger to
Implies a complete lack of experience, suggesting unfamiliarity as if with a foreign concept.
is ignorant of
Suggests a lack of knowledge, possibly implying a lack of education or awareness.
FAQs
What does "has not known" mean?
The phrase "has not known" indicates a lack of prior experience or awareness of something up to the present time. It suggests that the subject has never encountered or been familiar with the specified thing or situation.
What can I say instead of "has not known"?
You can use alternatives like "has never known", "is unaware of", or "has not experienced" depending on the context.
When is it appropriate to use "has not known"?
Use "has not known" when you want to emphasize that someone or something has never experienced or been aware of something until the present moment. This is often used to highlight a significant change or lack of prior exposure.
How does "has not known" differ from "did not know"?
"Has not known" refers to a continued lack of knowledge or experience up to the present, whereas "did not know" refers to a lack of knowledge at a specific point in the past. For example, "He has not known peace" implies a continuous state, while "He did not know the answer yesterday" refers to a past situation.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested