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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
is so interesting
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is so interesting" is correct and usable in written English.
You can use it to express that something captures your attention or curiosity in a positive way. Example: "The documentary on space exploration is so interesting that I couldn't stop watching it."
✓ Grammatically correct
News & Media
Academia
Science
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
52 human-written examples
"Chocolate is so interesting.
News & Media
Grapevine is so interesting!
Academia
Salt is so interesting.
News & Media
This is so interesting Lydia.
Academia
This is so interesting Aliza!
Academia
That in-between is so interesting".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
8 human-written examples
"That's so interesting".
News & Media
"He's so interesting.
News & Media
People are so interesting!
News & Media
That's so interesting, wow.
Academia
That's what's so interesting.
News & Media
Expert writing Tips
Best practice
Consider replacing "so interesting" with stronger synonyms like "fascinating" or "intriguing" to amplify the sentiment when appropriate.
Common error
While versatile, relying too heavily on "is so interesting" in formal writing can make your tone sound less sophisticated. Diversify your vocabulary with alternatives such as "captivating", "engaging", or "remarkable" to maintain a professional tone.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is so interesting" functions as a subjective assessment, expressing the speaker's or writer's personal level of interest or captivation. It's an adjective phrase modifying a subject, indicating that the subject has a quality that the speaker finds highly engaging, as demonstrated by Ludwig's examples.
Frequent in
News & Media
44%
Academia
28%
Science
13%
Less common in
Wiki
2%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "is so interesting" is a grammatically correct and versatile expression used to convey a strong sense of interest or captivation. According to Ludwig AI, it is "Very common", and while suitable for various contexts, including news, media, academic discussions, and casual conversation, it's important to consider the register and audience. For formal writing, stronger synonyms like "fascinating", "intriguing", or "engaging" may be more appropriate. By understanding its function and potential alternatives, you can effectively use "is so interesting" to express your genuine curiosity while maintaining clarity and precision in your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is incredibly fascinating
Replaces "so interesting" with a stronger adjective to emphasize the level of interest.
is remarkably captivating
Uses a more formal tone and different adjectives to express a strong sense of interest.
is extremely engaging
Focuses on the quality of holding one's attention, rather than general interest.
is exceptionally intriguing
Emphasizes the mysterious or thought-provoking nature of the subject.
piques my curiosity
Shifts from a statement to an expression of personal curiosity.
holds considerable appeal
Indicates that something is attractive or pleasing in a notable way.
possesses great allure
Emphasizes the enchanting or seductive quality of the subject.
has significant fascination
Highlights the compelling and absorbing nature of the subject.
is surprisingly absorbing
Suggests that something unexpectedly captures one's full attention.
arouses keen interest
Indicates a strong and active sense of curiosity or attention.
FAQs
How can I use "is so interesting" in a sentence?
You can use "is so interesting" to express your captivation or curiosity about a particular topic. For example, "The history of ancient Rome is so interesting that I could read about it for hours."
What are some alternatives to saying "is so interesting"?
You can use alternatives like "is incredibly fascinating", "is extremely engaging", or "is exceptionally intriguing" to convey a similar sentiment with different wording.
Is "is so interesting" too informal for academic writing?
While "is so interesting" is acceptable, academic writing often benefits from more precise and sophisticated language. Consider alternatives like "is remarkably captivating" or "arouses keen interest" to enhance your expression.
What makes something "so interesting" versus just "interesting"?
Using "so" before "interesting" intensifies the degree of interest. It implies a stronger emotional or intellectual engagement compared to simply stating something is "interesting". Other intensifiers could be used instead of "so", such as "very", "extremely", or "incredibly".
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested