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
this is interesting
Grammar usage guide and real-world examplesUSAGE SUMMARY
The sentence 'this is interesting' is correct and can be used in written English.
For example, you can use it when writing a book review: "The author's exploration of the history and culture of the city was particularly interesting."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(20)
that's fascinating
that piques my interest
this is instructive
this is pertinent
this is valuable
this is intriguing
this is worthwhile
this is fascinating
this is useful
this is exciting
this is amusing
this is concern
this is enlightening
this is of interest
this sounds interesting
that has potential
this sounds strange
this sounds wonderful
this sounds serene
that grabs my attention
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
51 human-written examples
This is interesting".
News & Media
Well, this is interesting.
News & Media
So this is interesting".
News & Media
Oh this is interesting.
News & Media
Now, this is interesting.
News & Media
WEDNESDAY'S PUZZLE — This is interesting.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
9 human-written examples
Now this was interesting.
News & Media
This was interesting.
News & Media
This was interesting at first.
News & Media
Won't this be interesting?
News & Media
Sachs calls this: "Be interesting.
News & Media
Expert writing Tips
Best practice
Use "this is interesting" to introduce a shift in topic or to signal that you are about to delve deeper into a particular aspect of the discussion.
Common error
Avoid beginning multiple consecutive sentences with "this is interesting". Vary your sentence structure by using synonyms or rephrasing your thoughts to maintain reader engagement.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "this is interesting" primarily functions as an interjection or comment, expressing a reaction to information, an observation, or a situation. Ludwig AI confirms that the expression is grammatically sound and contextually versatile, appearing in many diverse situations.
Frequent in
News & Media
60%
Academia
20%
Science
10%
Less common in
Formal & Business
5%
Encyclopedias
3%
Reference
2%
Ludwig's WRAP-UP
In summary, the phrase "this is interesting" is a grammatically correct and very common expression used to signal engagement, curiosity, or a desire for further exploration. As Ludwig AI indicates, it appears frequently in news, media, academic, and scientific contexts. While versatile, it's best to use this phrase judiciously and vary your expressions to maintain reader engagement. To add variety, consider alternatives such as "that's fascinating" or "that's noteworthy".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that's quite fascinating
Emphasizes the captivating nature of the subject.
that's rather intriguing
Highlights the mysterious or puzzling quality.
that's noteworthy
Focuses on the importance or significance.
how very curious
Expresses a sense of wonder and questioning.
i find that compelling
Highlights the engaging and persuasive nature.
that's an eye-opener
Expresses surprise or revelation.
that's quite revealing
Stresses the disclosure of previously unknown information.
that piques my interest
Indicates a spark of curiosity.
well, that's a surprise
Highlights the unexpected nature of the matter.
i never knew that
Expresses a newfound awareness.
FAQs
How can I use "this is interesting" in a sentence?
"This is interesting" is typically used as a reaction to something new or surprising. For example, "The data shows a significant increase in user engagement; "this is interesting", as we didn't expect such a change after the recent update."
What are some alternatives to saying "this is interesting"?
Depending on the context, you can use alternatives such as "that's fascinating", "that's intriguing", or "that's noteworthy".
Is it grammatically correct to say "this is interesting"?
Yes, "this is interesting" is grammatically correct. The structure follows the standard subject-verb-complement pattern.
When is it appropriate to use "this is interesting" in writing?
It's appropriate to use "this is interesting" when you want to express mild surprise, intrigue, or to acknowledge something worth further exploration. Use it sparingly to maintain impact.
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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested