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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 unacceptable
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is unacceptable" is correct and usable in written English.
It can be used to express that something is not allowed or is not satisfactory in a given context. Example: "The behavior displayed during the meeting is unacceptable and will not be tolerated in our workplace."
✓ Grammatically correct
News & Media
Formal & Business
Science
Alternative expressions(20)
is not permissible
is intolerable
cannot be condoned
is out of the question
fails to meet expectations
is unsuitable
is unconscionable
is totally disallowed
is strictly forbidden
should be disqualified
extremely discouraged
will not be understood
is ineligible
is more than one can bear
is not to be tolerated
is not sustainable
will not be admitted
is indefensible
will not be overlooked
is expressly forbidden
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
Supermarket inequality is unacceptable.
News & Media
Cultural inequality is unacceptable.
News & Media
That outcome is unacceptable.
News & Media
Either is unacceptable.
News & Media
"Japan's arrogance is unacceptable".
News & Media
And that is unacceptable".
News & Media
"The scoreline is unacceptable.
News & Media
Church inequality is unacceptable.
News & Media
Clearly this is unacceptable.
News & Media
Assad's brutality is unacceptable.
News & Media
This is unacceptable behaviour?
News & Media
Expert writing Tips
Best practice
Use "is unacceptable" to clearly and directly express disapproval or rejection of something. Ensure the context makes it clear what specifically is being deemed unacceptable.
Common error
While "is unacceptable" is generally correct, overuse can make writing sound overly critical or negative. In formal contexts, consider milder alternatives like "is not ideal" or "requires improvement" to maintain a more balanced tone.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is unacceptable" functions primarily as a predicative adjective, modifying a subject and expressing that something does not meet required standards or is not permissible. It strongly conveys disapproval. Ludwig confirms this usage through numerous examples.
Frequent in
News & Media
50%
Formal & Business
20%
Science
10%
Less common in
Wiki
10%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "is unacceptable" is a common and grammatically correct way to express that something does not meet required standards or is not permissible. As confirmed by Ludwig, this phrase is widely used in news, formal, and scientific contexts to clearly convey disapproval or rejection. While versatile, it's important to consider the tone and context, opting for milder alternatives like "is not permissible" in formal settings to maintain a balanced approach.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is not permissible
Focuses on the lack of permission or authorization, rather than general unacceptability.
is intolerable
Emphasizes the inability to endure or bear something, suggesting a higher degree of negativity.
cannot be condoned
Highlights the lack of approval or justification for something, often in a moral or ethical context.
is out of the question
Indicates something is completely impossible or not worth considering.
is simply not on
An informal expression indicating something is inappropriate or not allowed.
is beyond the pale
Indicates that something is outside the bounds of what is considered acceptable behavior.
is simply not good enough
Focuses on the lack of quality or adequacy, rather than general unacceptability.
is deeply regrettable
Expresses sorrow or disappointment about something, implying it should not have happened.
fails to meet expectations
Highlights the failure to satisfy established criteria or standards.
is open to objection
Suggests something is likely to be challenged or opposed.
FAQs
How can I use "is unacceptable" in a sentence?
The phrase "is unacceptable" is used to express that something doesn't meet the required standards or isn't allowed. For example, "That behavior "is unacceptable" in the workplace".
What's a more formal alternative to "is unacceptable"?
In formal contexts, consider alternatives such as "is not permissible", "is not advisable", or "does not meet the required standards" to maintain a professional tone.
How does "is unacceptable" differ from "is undesirable"?
"Is unacceptable" implies a stronger sense of rejection or disapproval, suggesting that something cannot be tolerated or allowed. "Is undesirable" simply indicates that something is not preferred or wanted.
When is it appropriate to use "is unacceptable" in writing?
Use "is unacceptable" when you need to clearly and directly express that something falls short of expectations, violates rules, or is otherwise not permissible. However, be mindful of the tone and consider alternatives if a milder approach is more suitable.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested