Unacceptable vs Not acceptable

Both 'unacceptable' and 'not acceptable' are correct phrases in English, but 'unacceptable' is more commonly used and considered more formal. 'Not acceptable' is also correct but tends to be used less frequently.

Last updated: April 05, 2024 • 822 views

This is a correct and commonly used term in English.

"Unacceptable"

It is used to describe something that is not satisfactory or permissible.

Examples:

His behavior was unacceptable in a professional setting.
The quality of the product was deemed unacceptable by the customers.
The delay in delivery was considered unacceptable by the client.
The proposal was rejected as unacceptable by the committee.
The level of pollution in the area was deemed unacceptable by the authorities.

Show examples from the web [+]

Unacceptable, disrespectful, and in very bad taste.
"Unacceptable likelihood of heart failure." That's how they put it.
Subject: Unacceptable mistreatment of older people
Subject: Unacceptable delays in payments made by EU-appointed contractors
United Nations officials have declared these restrictions unacceptable.
Unacceptable risks were identified for non-professional users.
"Unacceptable" means exactly that.
Unacceptable risk factor on all options.
Subject: Unacceptable measures to suppress workers' protests in Egypt
Subject: Unacceptable new counterterrorism legislation in the USA
Unacceptable levels of unemployment will persist.
Unacceptable concentrations could also appear in watercourses in agricultural regions,
Unacceptable solution and absolutely unprofessional behavior.
Us Bishops: Senate Bill still Unacceptable. Send last-minute Letter on Health Care Reform.
Today we have engines whose costs account for one third of the entire budget. Unacceptable.
Unacceptable austerity policies that weaken even more women
Is that all there was? Unacceptable. Nepriemliv.
Unacceptable Unforgivable To blood a child?
Unacceptable choosing the Asti Bishop, unfortunately it is not the only initiative in this regard... we are giving ourselves.
Severity levels Good, Satisfactory, Unsatisfactory, Unacceptable

Alternatives:

not permissible
not satisfactory
not allowed
not tolerable
not up to standard

This is a correct phrase in English, but it is less commonly used than 'unacceptable'.

"Not acceptable"

It is also used to convey that something is not satisfactory or permissible.

Examples:

His behavior was not acceptable in a professional setting.
The quality of the product was deemed not acceptable by the customers.
The delay in delivery was considered not acceptable by the client.
The proposal was rejected as not acceptable by the committee.
The level of pollution in the area was deemed not acceptable by the authorities.

Show examples from the web [+]

A three-year transitional period is not acceptable.
What's not acceptable is a dead Navy commander.
I'm sorry, doctor, that's not acceptable.
It is not acceptable for Parliament simply to ignore these requirements.
Not acceptable for publication, but we recommend to the authors to propose the work for another more suitable issue.
It is not acceptable, especially in times of growing Euroscepticism.
Belt route diagrams that do not show the vehicle seat are not acceptable.
Simply having member state languages only is not acceptable.
Parliament should object and should assert that this procedure is not acceptable.
Parliament should object and should assert that this procedure is not acceptable.
This de facto discrimination between producers affected is not satisfactory and not acceptable; it must therefore be removed.
Unauthorised access is not acceptable from a privacy point of view.
There is only one that is not acceptable to the Commission.
It is not acceptable that public health be put at risk like this.
Visa-free transit corridors are not acceptable to the applicant countries.
That was not acceptable to us.
This is not acceptable to the European taxpayers.
Such discriminatory treatment by the Commission is not acceptable under any circumstances.
Partial matches are not acceptable evidence.
Introduction of urgency procedures is not acceptable either.

Alternatives:

unacceptable
not permissible
not satisfactory
not allowed
not tolerable

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Unacceptable vs Not acceptable

"Unacceptable"

"Not acceptable"

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