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
it wasn't compulsory
Grammar usage guide and real-world examplesAlternative expressions(20)
it was optional
it was not required
it was mandatory
it was facultative
it was signed
it was used
it was violent
it was human
it was tabloid
it was raw
it was temporary
it was unforeseen
it was not essential
it was considered essential
was no need but
there was no need to
it wasn't required
there was no call for
it was deemed crucial
it wasn't necessary
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
2 human-written examples
Everyone did a bit of work, though it wasn't compulsory.
News & Media
The 1977 plebiscite on the national song was interesting because, even though it wasn't compulsory, it was held at the same time as a referendum relating to four changes to the constitution.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
Horsforth school, which has academy status, has defended its decision to run the trip, addiing that it was not compulsory.
News & Media
As far as she was aware, it was not compulsory for staff to wear the hijab.
News & Media
Because it was not compulsory to do so until the law changed in 2003.
News & Media
Prior to attending university I had no idea that it was not compulsory to undertake a dissertation and, although I personally have persevered to write one, many of my friends have opted not to do so.
News & Media
I fear that Solomon is one of an unknown number of people born between 1837 and 1875 whose births were not registered since it was not compulsory to do so before 1875, despite civil registration being brought in 1837.
News & Media
Since it was not compulsory to register births, deaths and marriages until after 1855, the records held by St James' are particularly valuable to historians and genealogists and copies are held in the National Library of Australia.
Wiki
Women highlighted that it was not compulsory but optional.
Science
A significant number of students did not use the web-based formative test as it was not compulsory [ 9].
Science
In the 90's it was not compulsory (as it is nowadays) to have the approval of an appropriate ethics committee for observational studies in Spain.
Science
Expert writing Tips
Best practice
Consider using the full form "it was not compulsory" in academic or strictly formal papers to maintain a higher level of professional distance.
Common error
Do not use "it wasn't compulsory" when you actually mean "it wasn't necessary". Something may not be a rule (compulsory), but it could still be functionally required (necessary) for a task to succeed. Ensure you are addressing the lack of a rule, not a lack of utility.
Source & Trust
83%
Authority and reliability
4.7/5
Expert rating
Real-world application tested
Linguistic Context
In the phrase "it wasn't compulsory", "it" acts as a dummy subject or an expletive referring back to a specific action. The verb "wasn't" is the negative contracted form of the linking verb "be" in the past tense, followed by the adjective "compulsory" as a subject complement. As shown in Ludwig, this structure is used to negate a state of obligation.
Frequent in
News & Media
50%
Science
30%
Wiki
15%
Less common in
Encyclopedias
3%
Formal & Business
1%
Social Media
1%
Ludwig's WRAP-UP
The phrase "it wasn't compulsory" is a standard and highly effective English expression used to describe the lack of a rule or obligation in the past. Ludwig AI data indicates that while the specific contracted form is favored by major news outlets like The Guardian and The New Yorker, the underlying sentiment is found across academic and scientific fields as well. It functions as a clarification tool, helping writers explain why a choice was made freely rather than by mandate. When using this phrase, writers should ensure they are addressing an actual lack of a requirement rather than a lack of logical necessity. While the contraction is acceptable for most professional writing, switching to the full form "it was not compulsory" can help elevate the register for more formal manuscripts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
it was not mandatory
Provides a more formal and administrative tone often used in professional settings.
it was optional
Focuses on the availability of choice for the subject.
it was not required
Commonly found in technical, procedural or instructional contexts.
it wasn't a requirement
Shifts the grammatical focus from the quality to the specific noun "requirement".
it was non-obligatory
Offers a strictly formal and objective adjective phrase.
it was voluntary
Emphasizes the participant's willingness rather than the rule itself.
it was a choice
Simplifies the concept for general or colloquial audiences.
it was discretionary
Implies the power to decide was left to the individual's judgment.
it was not binding
Refers specifically to a lack of legal or contractual force.
it was not enforced
Suggests a rule might have existed but carried no practical consequences.
FAQs
Can I use "it wasn't compulsory" in formal writing?
While the phrase is correct, the contraction "wasn't" makes it more suitable for journalism and business. For formal academic papers, it is better to use "it was not compulsory".
What is the difference between "it wasn't compulsory" and "it wasn't mandatory"?
The two are largely interchangeable, but "it was not mandatory" is more common in administrative or legal contexts, while "it wasn't compulsory" is frequently used for education and social activities.
Is "it was optional" a good synonym?
Yes, "it was optional" is an excellent synonym that often carries a more positive connotation of having a choice.
How do I use this phrase to explain a choice?
You can use it as a standalone explanation: "Attendance was high, though "it was not required" and indeed it wasn't compulsory."
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
83%
Authority and reliability
4.7/5
Expert rating
Real-world application tested