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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
that interesting
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that interesting" is correct and usable in written English, though it may require context to clarify its meaning.
You can use it when expressing a level of curiosity or engagement about a topic or situation, often in a conversational tone. Example: "I found the documentary on climate change to be that interesting that I watched it twice."
✓ Grammatically correct
News & Media
Wiki
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
54 human-written examples
Okay, not that interesting yet.
News & Media
"We're not that interesting," John Harbaugh said.
News & Media
Sometimes being positive isn't all that interesting...
News & Media
Trust us, you're not that interesting. .
News & Media
Cliff Palette wasn't all that interesting.
News & Media
Isn't that interesting?
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
6 human-written examples
Wow that was interesting.
News & Media
"And that became interesting".
News & Media
Well, uh, that was interesting.
News & Media
Oh that's interesting.
News & Media
I found that quote interesting.
News & Media
Expert writing Tips
Best practice
When using "that interesting", ensure the context clearly indicates what the subject of interest is to avoid ambiguity.
Common error
While grammatically sound, overuse of "that interesting" can make formal writing sound conversational. Opt for more precise adjectives like "intriguing" or "fascinating" in such contexts.
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that interesting" functions as an adjective phrase, modifying a noun or idea to express a level of intrigue or curiosity. As Ludwig AI shows, it is often used in conversational contexts to express a reaction or opinion about something.
Frequent in
News & Media
50%
Wiki
17%
Science
8%
Less common in
Formal & Business
8%
Academia
8%
Encyclopedias
8%
Ludwig's WRAP-UP
In summary, the phrase "that interesting" functions as an adjective phrase to express mild intrigue or curiosity. Ludwig AI confirms that it is grammatically correct and usable, particularly in neutral to informal contexts. While common in news and media, its use should be carefully considered in more formal or academic writing where stronger, more precise adjectives may be preferred. Remember to ensure clarity in your writing by clearly indicating what the subject of interest is when using this phrase.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
very intriguing
Suggests something mysterious or fascinating.
quite fascinating
Highlights the remarkable or appealing nature.
so captivating
Emphasizes the ability to hold attention and interest.
genuinely compelling
Indicates a strong, undeniable interest.
remarkably engaging
Highlights the ability to draw someone in and keep them interested.
strikingly absorbing
Emphasizes the quality of completely occupying one's attention.
exceptionally curious
Focuses on the odd or strange quality that piques interest.
uncommonly appealing
Indicates that something is attractive or pleasing in a unique way.
notably thought-provoking
Focuses on the quality of stimulating thought and reflection.
decidedly stimulating
Highlights the invigorating or exciting nature of something.
FAQs
How can I use "that interesting" in a sentence?
You can use "that interesting" to express mild surprise or intrigue, as in "I found "that interesting", considering the source".
What are some alternatives to using "that interesting"?
Alternatives include "intriguing", "fascinating", or "noteworthy", depending on the specific nuance you want to convey.
Is "that interesting" a formal or informal expression?
"That interesting" leans towards informal usage. In formal contexts, consider more precise and sophisticated adjectives.
Can "that interesting" be used in academic writing?
While grammatically correct, "that interesting" may be too informal for academic writing. Opt for stronger, more analytical language.
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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
4.1/5
Expert rating
Real-world application tested