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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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not obligatory

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "not obligatory" is correct and usable in written English.
It can be used to indicate that something is not required or mandatory. Example: "Participation in the survey is not obligatory, but your feedback would be greatly appreciated."

✓ Grammatically correct

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

It's not obligatory".

News & Media

The Guardian

Music is not obligatory.

News & Media

The Guardian

Rubbing noses is not obligatory.

Bookings are recommended but not obligatory.

It's not obligatory, but it is expected".

But the historical context was not obligatory in the curriculum.

And yet, and yet... "liking Shakespeare is not obligatory".

But they are not obligatory for other tournaments, only recommended.

If asked, he explained that the full admission price was not obligatory.

Vodka is not obligatory; shamans use everything from black tea to a fermented milk called tarasun.

News & Media

The New York Times

With traditional – if not obligatory – British self-deprecation, he's downplayed the artsiness of his upbringing.

News & Media

The Guardian
Show more...

Expert writing Tips

Best practice

Use "not obligatory" to clearly communicate that an action or choice is optional, not mandatory. This helps avoid confusion and empowers individuals to make informed decisions.

Common error

Avoid implying a stronger sense of freedom or choice than intended. While "not obligatory" indicates something is not required, it doesn't necessarily mean it's encouraged or preferable. Choose alternatives like "optional" or "voluntary" if a stronger emphasis on choice is needed.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "not obligatory" functions as an adjective phrase, modifying a noun to indicate that something is not required. It serves to clarify the status of a requirement or duty. According to Ludwig AI, this phrase is grammatically correct.

Expression frequency: Very common

Frequent in

Science

32%

News & Media

31%

Encyclopedias

2%

Less common in

Wiki

2%

Formal & Business

2%

Reference

0%

Ludwig's WRAP-UP

The phrase "not obligatory" is a grammatically sound and frequently used expression to indicate that something is optional, not required. According to Ludwig, it serves to clarify that a particular action or condition is discretionary. Appearing across various sources—particularly in science, news, and encyclopedias—the phrase is commonly used in neutral to formal contexts where clarity is important. For more informal communication, one may consider using "optional" or "not required". Ultimately, using "not obligatory" effectively involves understanding the context and ensuring it accurately conveys the intended degree of choice.

FAQs

What does "not obligatory" mean?

The phrase "not obligatory" means something is not required or mandatory. It is "optional" and can be done at one's own discretion.

How can I use "not obligatory" in a sentence?

You can use "not obligatory" to indicate that an action or decision is "not required". For example, "While registration is recommended, it is "not obligatory"".

Which is correct, "not obligatory" or "non-obligatory"?

"Not obligatory" is more common and generally preferred. "Non-obligatory" is also correct but less frequently used. Consider using "optional" or "not required" for simpler phrasing.

What are some alternatives to "not obligatory"?

Alternatives to "not obligatory" include "optional", "not required", "voluntary", and "discretionary". The best choice depends on the specific context.

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Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: