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
unless required
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'unless required' is an acceptable part of a sentence in written English.
You can use it to indicate that something should not happen or be done unless it is necessary. For example: "Discussing your private issues in public is not recommended, unless required."
✓ Grammatically correct
News & Media
Science
Formal & Business
Wiki
Alternative expressions(20)
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
51 human-written examples
The proportion of 17-year-olds who read nothing whatsoever (unless required to do so for school) more than doubled between 1984 and 2004 a period that oversaw the rise of personal computers, the internet and video games.
News & Media
Susan Jacoby, author of "The Age of American Unreason", for example, cites the 2007 NEA report that "the proportion of 17-year-olds who read nothing (unless required to do so for school) more than doubled between 1984 and 2004 .So it is a surprise that this bellwether seems to have taken a turn for the better.
News & Media
i.e. every time a build runs you do not lose the prior state (unless required).
News & Media
The Guardian will not disclose information we collect through the use of cookies to third parties unless required to do so by law.
News & Media
Boston police officials said they did not plan to reopen the case and would not turn over evidence unless required to by a judge.
News & Media
Like other chief prosecutors in Florida, she typically steers clear of grand juries, unless required as in requests to try juveniles as adults.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
7 human-written examples
Most minor birth defects are not recorded in the Register, unless requiring treatment [ 17, 18].
Science
[ 25] However, we have avoided this (unless urgency requires it) and focus on empowering the patient to contact the physician.
Science
"Vodafone does not disclose any customer data in any jurisdiction unless legally required to do so.
News & Media
On such days, it is assumed that employees will not come to work unless absolutely required.
News & Media
It said that one clause, unless amended, required the approval of a national referendum.
News & Media
Expert writing Tips
Best practice
When using "unless required", ensure the context clearly defines who or what determines the requirement. Ambiguity can lead to misinterpretation.
Common error
Avoid placing "unless required" at the beginning of a sentence when it modifies a specific clause within the sentence. This can create confusion. Instead, position it closer to the element it modifies.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "unless required" functions as an adverbial phrase, modifying a verb or clause to express a condition under which an action or state is permissible or necessary. As Ludwig AI clarifies, it indicates something should not happen or be done unless it is necessary. The examples show it is used in various contexts to set limits and conditions.
Frequent in
News & Media
32%
Science
32%
Wiki
15%
Less common in
Formal & Business
15%
Academia
3%
Encyclopedias
3%
Ludwig's WRAP-UP
In summary, "unless required" is a grammatically sound and frequently used conditional phrase that establishes exceptions to general rules. Ludwig AI confirms its acceptability in written English. It finds application across varied domains like news, science, and formal communications. The phrase functions as an adverbial modifier, setting conditions for specific actions. While maintaining a neutral to professional register, this versatile phrase ensures precision in conveying conditional exceptions. When employing "unless required", clarity regarding the determining authority is crucial to avoid ambiguity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
except when necessary
Replaces 'required' with 'necessary', implying a similar condition of need.
save where needed
Uses 'needed' to convey the essential nature of the condition, slightly less formal.
except if it's essential
Emphasizes the critical nature of the condition with 'essential'.
only if compelled
Indicates a sense of obligation or force driving the requirement.
when not optional
Highlights the non-discretionary aspect of the requirement.
if not obligatory
Focuses on the mandatory aspect, implying something is only done if it's obligatory.
unless it's a must
Informal phrasing emphasizing the absolute necessity of the condition.
excluding when indispensable
Uses 'indispensable' to denote the crucial nature of the condition, slightly more formal.
except under constraint
Implies an external pressure or restriction necessitating the action.
but for the exception
Highlights the exceptional nature of the condition where the rule does not apply.
FAQs
How to use "unless required" in a sentence?
Use "unless required" to indicate a conditional exception. For example, "Employees should not access the server "unless required" for their job functions".
What can I say instead of "unless required"?
You can use alternatives like "except when necessary", "save where needed", or "only if compelled depending on the context.
Which is correct, "unless required" or "if not required"?
Both phrases can be correct, but they have slightly different implications. "Unless required" implies a general prohibition with a specific exception, whereas "if not required" simply states a condition. The choice depends on the intended emphasis.
What's the difference between "unless required" and "unless necessary"?
"Unless required" and "unless necessary" are often interchangeable, but "required" suggests a formal demand or stipulation, while "necessary" indicates a more general need. The best choice depends on the context and the level of formality.
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
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested