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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
this is not compulsory
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "this is not compulsory" is correct and usable in written English.
You can use it to indicate that something is optional and not required. Example: "Attendance at the meeting is not compulsory, but we encourage everyone to join if they can."
✓ Grammatically correct
News & Media
Science
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
8 human-written examples
This is not compulsory and the driver, who had seven years' previous experience, replied: I would not have broke my neck, but I don't know if it's an advantage to have a seat belt.
News & Media
Please note that this is not compulsory and only a select few submissions will be reviewed during the class The science of storytelling with Will Storr How to plan your novel and enjoy the writing process Sign up to our newsletter and you'll be among the first to find out about our latest courses and special offers.
News & Media
Although the government aims towards universal education, this is not compulsory and is hampered by limited resources.
As part of the NBCSP, participants are encouraged to nominate their usual primary care provider on their participants details form; however, this is not compulsory [ 8].
Science
In 2003, the NBC drew up conclusive bioethical recommendations which gave full legitimacy to public advance statements redacted in written form, devoid of any prospect of euthanasia, compiled with the help of a physician, as specific and personalized as possible, and by which the physician should abide even if this is not compulsory [ 19].
This is not compulsory!
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
This isn't compulsory – it's just an idea so that people arrive in the right frame of mind for the course.
News & Media
Arranging pictures in albums makes it easier to search for them, but this isn't compulsory.
Wiki
This isn't compulsory, but most authors use this to gain the reader's sympathy, and identify with the character.
Wiki
You may also like to give a summary of all your stories, but they do appear under the 'my stories' tab, so this isn't compulsory, but it's suggested if you need a longer summary.
Wiki
A spokeswoman for the company confirmed that airport store teams are asked to request and scan boarding cards to ensure the "accurate reporting of VAT", although this was not compulsory.
News & Media
Expert writing Tips
Best practice
When using "this is not compulsory", ensure the context clearly indicates what is being referred to as optional. For example, specify the activity, task, or item that is not mandatory.
Common error
Avoid using "this is not compulsory" when you actually mean something is unnecessary or not recommended. "Compulsory" implies a lack of requirement, whereas "unnecessary" suggests it provides no value.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "this is not compulsory" functions as a declarative statement that clarifies the optional nature of something. As Ludwig AI suggests, it's used to indicate that an action or requirement is not mandatory, allowing for choice.
Frequent in
News & Media
32%
Science
32%
Wiki
18%
Less common in
Encyclopedias
9%
Formal & Business
9%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "this is not compulsory" is a grammatically sound and versatile expression used to indicate that something is optional rather than required. Ludwig AI confirms its correctness and usability. While common in news, scientific publications and Wiki entries, it is less frequent in other contexts. When using the phrase, ensure clarity regarding what is being deemed optional and differentiate it from something being unnecessary. Semantically related alternatives include phrases like "this is optional" or "this is not mandatory". The register is neutral to formal.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
this is optional
Replaces "compulsory" with "optional", directly conveying the same meaning.
this is voluntary
Substitutes "compulsory" with "voluntary", emphasizing the element of choice.
this is not mandatory
Uses "mandatory" instead of "compulsory" maintaining a formal tone.
this is not required
Replaces "compulsory" with "required", indicating a lack of necessity.
this is at your discretion
Shifts the focus to individual choice and decision-making.
this is not obligatory
Employs "obligatory", a more formal synonym for "compulsory".
you are not obliged to do this
Puts the onus on the individual, explicitly stating there's no obligation.
participation is not compulsory
Focuses on the act of participation, clarifying it's not a requirement.
it's up to you
Offers a simpler, more direct way of saying something is optional.
this is not a must
Uses "a must" to convey the opposite of compulsory, indicating it's not essential.
FAQs
What does "this is not compulsory" mean?
The phrase "this is not compulsory" means that something is optional and not required. You have a choice whether or not to do it.
What can I say instead of "this is not compulsory"?
You can use alternatives like "this is optional", "this is voluntary", or "this is not mandatory" depending on the context.
Is it better to say "this isn't compulsory" or "this is not compulsory"?
Both "this isn't compulsory" and "this is not compulsory" are grammatically correct. The contracted form "this isn't compulsory" is more informal, while "this is not compulsory" is slightly more formal but they both mean the same.
When should I use "this is not compulsory" in writing?
Use "this is not compulsory" to clearly indicate that a particular action, task, or item is optional and not a requirement. It's useful in instructions, guidelines, or when providing choices.
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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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested