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
quite ill
Grammar usage guide and real-world examplesUSAGE SUMMARY
"quite ill" is a grammatically correct and commonly used phrase in written English.
You can use "quite ill" to express that someone is significantly and noticeably ill, but not necessarily to the point of being hospitalized or in critical condition. It conveys that their illness is not mild or minor, but also not severe or life-threatening. Example: "After catching the flu, John was feeling quite ill and had to take a few days off work to rest and recover."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(6)
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
He became quite ill.
News & Media
I got quite ill at one point.
News & Media
I knew that he was quite ill.
News & Media
I believe he is quite ill.
News & Media
Q.A friend recently fell quite ill with something called ehrlichiosis.
News & Media
It caused an infection that made the patient quite ill.
News & Media
He was quite ill at 94, someone said.
News & Media
Entering woman said "I hear you were quite ill".
News & Media
And if you eat enough of them, you'll get quite ill.
Academia
By then, Mr. Tripe was quite ill and he came back to England in 1860.
News & Media
Just after she reached the halfway point, though, she suddenly fell quite ill.
News & Media
Expert writing Tips
Best practice
Use "quite ill" to describe a condition that is more serious than just "feeling unwell", but not as critical as "gravely ill". It suggests a noticeable impact on health.
Common error
Avoid using "quite ill" when the situation warrants stronger terms like "critically ill" or "hospitalized", as it might downplay the seriousness of the condition.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "quite ill" functions as an adverb-adjective combination, modifying the adjective "ill" to intensify its meaning. It describes the extent or degree of someone's sickness, indicating a state of being noticeably unwell. Ludwig confirms that this is a grammatically correct and commonly used phrase.
Frequent in
News & Media
58%
Academia
22%
Science
15%
Less common in
Formal & Business
3%
Wiki
2%
Reference
0%
Ludwig's WRAP-UP
In summary, "quite ill" is a commonly used and grammatically correct phrase that conveys a significant degree of sickness. As highlighted by Ludwig, it indicates a condition more serious than simply "unwell", but not necessarily critical. The phrase is versatile and appears frequently in news, academic, and scientific contexts. While alternatives like "rather unwell" or "seriously sick" can be used, "quite ill" provides a balanced and widely understood description of someone's health status. It's important not to overstate or understate the illness and to use context-appropriate language.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
rather unwell
Replaces "ill" with "unwell" and "quite" with "rather", indicating a similar level of sickness but with a slightly softer tone.
seriously sick
Emphasizes the severity of the illness, suggesting a more critical condition than "quite ill".
gravely sick
Implies a severe and potentially life-threatening illness.
extremely unhealthy
Focuses on the state of being unhealthy, potentially encompassing more than just illness.
badly ailing
Uses "ailing" to describe a decline in health, with "badly" highlighting the severity.
suffering severely
Shifts focus to the experience of suffering due to the illness, emphasizing the discomfort and distress.
in poor health
Indicates a general state of poor health, which can be long-term or chronic, rather than a specific acute illness.
not feeling well
A more general statement indicating discomfort or mild illness.
under the weather
An idiomatic expression for feeling slightly unwell.
laid up
Suggests being confined due to illness, implying a period of inactivity.
FAQs
How do I use "quite ill" in a sentence?
Use "quite ill" to describe someone experiencing a significant level of sickness, for example: "After the trip, he became "quite ill" and had to stay home from work."
What's the difference between "quite ill" and "slightly ill"?
"Quite ill" indicates a more serious condition than "slightly ill". "Quite ill" suggests a noticeable impact on one's health, whereas "slightly ill" implies a minor ailment.
What can I say instead of "quite ill"?
You can use alternatives like "rather unwell", "seriously sick", or "gravely sick" depending on the context and the severity of the illness.
Is "quite ill" formal or informal?
"Quite ill" is generally considered a neutral expression suitable for both formal and informal contexts. However, in highly formal settings, "gravely sick" might be preferred to convey a more serious condition.
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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested