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
that is inappropriate
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that is inappropriate" is correct and usable in written English.
You can use it to express that something is not suitable or acceptable in a given context. Example: "The comments made during the meeting were unprofessional and that is inappropriate."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(20)
that is unacceptable
that is not acceptable
that is wrong
that is out of line
that is undesirable
that is suitable
that is incorrect
that is unfortunate
that is misguided
that is shameful
it is unlucky
that is distressing
that is a shame
that's too bad
that is deplorable
that is terrible
it is regrettable
it's a shame
that is disappointing
that is regretful
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
"But that wouldn't excuse conduct that is inappropriate.
News & Media
So this is a possession that is inappropriate for poor whites.
Academia
"We do not tolerate unlawful behavior or workplace behavior that is inappropriate," Mr. Stout said.
News & Media
They also may approach failure in a way that is inappropriate for the context.
News & Media
Can parents prevent broadcasters from filling the airwaves with material that is inappropriate for children?
News & Media
We would rather go without than do something that is inappropriate".
News & Media
Nobody talks about a coach that is inappropriate with athletes; the coach quietly moves away and gets hired someplace else".
News & Media
If advertising sometimes results in patients' asking for a drug that is inappropriate, I will say so.
News & Media
As a result of their performance of these invalid measures, ELLs can end up in a classroom that is inappropriate for their level of instruction.
Academia
The Fed in my view is staying incremental with a very blunt instrument, the Fed funds rate, that is inappropriate for dealing with the problems that it's facing".
News & Media
"There is clear evidence of Iranian activities, in some cases supplying weaponry and training to the Taliban that is inappropriate," he said.
News & Media
Expert writing Tips
Best practice
Consider the audience and adjust the formality of the phrase; alternatives like "that is unacceptable" may be more suitable for formal settings.
Common error
Avoid using "that is inappropriate" in very casual conversations; opt for more relaxed alternatives like "that's not okay" or "that's out of line" to maintain a natural tone.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that is inappropriate" functions as a declarative statement expressing disapproval or disagreement. As confirmed by Ludwig, it correctly identifies an action, behavior, or statement as not fitting or acceptable within a given set of standards.
Frequent in
News & Media
44%
Academia
15%
Science
15%
Less common in
Formal & Business
7%
Wiki
4%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "that is inappropriate" is a versatile expression used to denote unsuitability or unacceptability across various contexts. As Ludwig confirms, it's grammatically correct and widely used. While generally maintaining a neutral to professional register, it's essential to consider the specific audience and context when choosing this phrase. News & Media and Academia are the most frequent contexts. For more casual settings, consider using less formal alternatives such as "that's not okay" or "that's out of line". Knowing when and how to use "that is inappropriate" can significantly improve the clarity and effectiveness of your communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that is unsuitable
Replaces "inappropriate" with a direct synonym, emphasizing the lack of suitability.
that is unacceptable
Uses a stronger term to denote something not tolerable or allowable.
that is not acceptable
A more formal version of "that is unacceptable", carrying a similar meaning.
that is improper
Indicates a violation of established rules or standards of conduct.
that is wrong
Suggests a moral or ethical violation, making it less neutral than "inappropriate".
that is unfit
Implies a lack of qualification or preparedness for a particular purpose.
that is out of line
Conveys a sense of exceeding acceptable boundaries of behavior.
this is not on
An informal, often British, way to express disapproval or unacceptability.
that's simply not on
Similar to 'this is not on' but with an intensifier, for more emphasis.
that's just not done
Emphasizes a breach of social norms or etiquette.
FAQs
What are some alternatives to "that is inappropriate"?
You can use alternatives like "that is unsuitable", "that is unacceptable", or "that is improper" depending on the context.
How do I use "that is inappropriate" in a sentence?
Use "that is inappropriate" to express disapproval or disagreement with a behavior, action, or statement. For example, "His behavior at the meeting was disruptive, and that is inappropriate."
When is it best to use "that is inappropriate"?
"That is inappropriate" is suitable for professional, academic, or formal settings. For informal contexts, consider alternatives like "that's not okay" or "that's out of line".
Is "that is inappropriate" a formal or informal phrase?
"That is inappropriate" tends to be more formal than alternatives. However, the level of formality depends on the situation and audience. Always adapt your language to fit the specific context.
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested