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
long interested
Grammar usage guide and real-world examplesUSAGE SUMMARY
"long interested" is a correct and usable phrase in written English.
It is most commonly used to describe something one has been interested in for a long time. For example: "I have been long interested in films from the French New Wave cinema movement."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Wiki
Alternative expressions(1)
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
53 human-written examples
The idea of reconfiguring existing structures has long interested artists.
News & Media
That protein had long interested biologists, but they hadn't been able to pinpoint what it did.
News & Media
Long interested in Democratic politics, he also served a term on the Urbana City Council.
News & Media
Prince was long interested in bringing academic psychology and clinical psychology together with a uniform set of concepts.
Encyclopedias
Long interested in education, Haldane was associated with the Fabian Socialists Sidney and Beatrice Webb in founding the London School of Economics in 1895.
Encyclopedias
Long interested in international auxiliary languages, he helped to elaborate Ido, but his main achievement in this area was devising Novial, which he presented in International Language (1928).
Encyclopedias
Long interested in international humanitarian work, Ms. Jolie appeared in Pakistan, where she visited camps housing Afghan refugees, and even met with President Pervez Musharraf.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
4 human-written examples
I've long been interested in memory.
News & Media
One is John Nunn, an English grandmaster, who has long been interested in creating studies and problems.
News & Media
Dr. Reynolds of Duke has long been interested in electronics and wireless equipment.
News & Media
It's a subject in which Godard had long been interested — and about which he had long hoped to make a film.
News & Media
Expert writing Tips
Best practice
When using "long interested", ensure the context clearly indicates the subject of interest and the duration is relevant to the point you're making. For example, "She was long interested in environmental conservation, which led her to pursue a career in sustainability."
Common error
Avoid using "long interested" when you mean someone has recently developed an interest. This phrase emphasizes a sustained, pre-existing interest. For instance, instead of saying "He's long interested in coding", if he just started, say "He's recently become interested in coding".
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "long interested" typically functions as a descriptive adjective phrase modifying a noun or pronoun, indicating a prolonged or sustained interest. This is supported by Ludwig, which confirms its correctness and usability.
Frequent in
News & Media
32%
Science
32%
Encyclopedias
14%
Less common in
Wiki
12%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "long interested" is a grammatically sound and commonly used way to describe a sustained interest over time. As noted by Ludwig, it's a correct and usable expression in English. It is frequently found in News & Media and scientific contexts. To maximize clarity, use it when highlighting an interest that has persisted for a significant period, and avoid it when describing newly developed interests. Consider using alternatives like "deeply fascinated" or "maintained a long-standing interest in" to vary your language. By understanding its appropriate usage, you can effectively communicate the depth and duration of someone's passion or curiosity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
maintained a long-standing interest in
Highlights the duration and persistence of the interest.
held a sustained interest in
Focuses on the sustained nature of the interest.
deeply fascinated
Emphasizes the depth of interest rather than the duration.
developed a lasting interest in
Suggests the interest has endured over time.
possessed a keen interest in
Emphasizes the enthusiasm associated with the interest.
always had an interest in
Rephrases the interest as a continuous state.
cultivated a prolonged interest in
Implies that interest has been nurtured and maintained.
has been curious about for years
Focuses on curiosity as the driving force behind long-term interest.
for many years found interest in
Rephrases to highlight a historical pattern of interest.
for a long time been captivated by
Emphasizes being charmed or influenced over an extended period.
FAQs
How can I use "long interested" in a sentence?
Use "long interested" to describe a subject or field that someone has had a sustained interest in over a considerable period. For example: "She has been "long interested" in marine biology."
What are some alternatives to "long interested"?
Alternatives include phrases like "deeply fascinated", "always had an interest in", or "maintained a long-standing interest in", depending on the specific nuance you want to convey.
Is it grammatically correct to say "long interested"?
Yes, "long interested" is grammatically correct and commonly used to indicate a sustained interest over time. As Ludwig AI confirms, it's a valid and usable phrase in written English.
How does "long interested" differ from "recently interested"?
"Long interested" implies an interest that has persisted for a significant duration, whereas "recently interested" indicates a newly developed interest. Choosing between the two depends on the timeframe and continuity of the interest.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested