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 quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

is not obligatory

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "is 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

Music is not obligatory.

News & Media

The Guardian

Rubbing noses is not obligatory.

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

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

News & Media

The New York Times

Public shaming is not obligatory — no pillory, no stocks, no scarlet P for pot.

4. Talking about dying is not obligatory - some people and cultures shy away from it.

Generally, the burgomaster is a member of the elected council, but this is not obligatory.

8. Remember, it is not obligatory to cook meat at your barbecue.

News & Media

Independent

"Bases and barracks have all been reduced and it is not obligatory to serve.

News & Media

The New York Times

Unless you're a social media manager or something similar for your actual job, participation is not obligatory.

But compliance with those guidelines is not obligatory, and genetic testing practices vary widely across the United States.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

When clarifying guidelines or rules, use "is not obligatory" to clearly state that a specific action or requirement is not mandatory, allowing for flexibility or alternative approaches. For instance, "While pre-registration is encouraged, it "is not obligatory".

Common error

Avoid assuming that because something "is not obligatory", it is therefore forbidden. "Is not obligatory" simply means it's optional, whereas prohibition implies it is disallowed. Maintain clarity to prevent misunderstandings.

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

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "is not obligatory" primarily functions as a qualifier, indicating that something is not a mandatory requirement. Ludwig AI confirms its grammatical correctness and usability.

Expression frequency: Very common

Frequent in

News & Media

34%

Science

57%

Encyclopedias

2%

Less common in

Formal & Business

2%

Wiki

1%

Social Media

0%

Ludwig's WRAP-UP

In summary, the phrase "is not obligatory" functions as a qualifier, indicating the absence of a mandatory requirement. Ludwig AI confirms that it is grammatically correct and widely used across various domains. This expression is commonly found in News & Media and Scientific publications, as well as encyclopedias, and conveys that an action or decision is optional rather than compulsory. Related phrases such as "is not required" and "is not mandatory" offer similar meanings, and it is important to distinguish "is not obligatory" from "is prohibited" to avoid misinterpretations.

FAQs

What does "is not obligatory" mean?

The phrase "is not obligatory" means that something is not required or mandatory. It implies a degree of freedom or choice, suggesting that while it may be an option, there's no compulsion to do it.

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

You can use "is not obligatory" to indicate that a particular action, step, or requirement is optional. For example: "Although a reservation is recommended, it "is not obligatory".

What are some alternatives to "is not obligatory"?

Alternatives to "is not obligatory" include "is not required", "is not mandatory", "is not compulsory", "is optional", and "is not necessary".

Is there a difference between "is not obligatory" and "is prohibited"?

Yes, these phrases have opposite meanings. "Is not obligatory" means something is optional, while "is prohibited" means something is forbidden or not allowed.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

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.

Source & Trust

84%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences: