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
is obligatory
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is obligatory" is correct and usable in written English.
It can be used to indicate that something is required or mandatory in a specific context. Example: "Attendance at the safety training session is obligatory for all employees."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(20)
will be assembled
will be interrogated
is deserved
is predicated
needs refinement
deserves to be done
will be reinvigorated
is required to be done
ought to be done
must needs
is needed
will be accelerated
benefits needed
will be desired
has to be executed
is essential
will be understood
needs to be done
is engendered
is 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
59 human-written examples
There is obligatory scatology.
News & Media
Indeed, it is obligatory.
News & Media
The "by all accounts" is obligatory.
News & Media
Some of it, I'm sure, is obligatory.
News & Media
"Even the Qur'an tells us that knowledge is obligatory".
News & Media
A society where wellness is obligatory is a sick one.
News & Media
To become a leader in any field, specialisation is obligatory.
News & Media
(It is obligatory to add that he hated the place).
News & Media
This early mother-young association is obligatory for newborns.
Encyclopedias
Voting is obligatory in most of Latin America, for instance.
News & Media
Holding off Mr Trump there is obligatory for him.
News & Media
Expert writing Tips
Best practice
When using "is obligatory" in formal writing, ensure the context clearly establishes the source of the obligation, whether it's a law, rule, or moral principle.
Common error
Avoid using "is obligatory" in casual conversations or informal writing. Opt for simpler alternatives like "is required" or "is a must" to maintain a natural tone.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is obligatory" functions as a predicative adjective, indicating that something is required or compulsory. It asserts a condition or action that must be fulfilled, as demonstrated by examples in Ludwig like "Voting is obligatory in most of Latin America". Ludwig AI confirms the correct usage of the phrase.
Frequent in
News & Media
39%
Science
54%
Encyclopedias
1%
Less common in
Wiki
1%
Formal & Business
1%
Social Media
0%
Ludwig's WRAP-UP
The phrase "is obligatory" is a grammatically correct and frequently used expression to denote that something is required or mandatory. Ludwig AI confirms its usability in written English. Predominantly found in formal contexts such as news media and scientific publications, the phrase serves to communicate a formal requirement or duty. While alternatives like "is required" or "is mandatory" may be more appropriate in informal settings, "is obligatory" maintains a strong presence in professional and academic discourse. The analysis underscores its correct usage and offers guidance to avoid overuse in casual communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is required
This alternative is a more direct and commonly used synonym, suitable for most contexts where "is obligatory" is appropriate.
is mandatory
This alternative emphasizes the compulsory nature of the action or item, similar to "is obligatory" but with a stronger sense of enforcement.
is compulsory
This alternative is another synonym highlighting the forced nature of the requirement, often used in legal or formal contexts.
is imperative
This alternative conveys a sense of urgency and importance, suggesting that the action or item is crucial and cannot be ignored.
is essential
This alternative shifts the focus to the importance of the item or action, suggesting it is crucial for achieving a specific outcome.
is a necessity
This alternative frames the requirement as something indispensable, highlighting its importance for a particular purpose.
is a must
This alternative is a more informal way of expressing necessity, often used in recommendations or casual advice.
is a prerequisite
This alternative specifies that the item or action is a necessary condition that must be met before something else can occur.
is strictly enforced
This alternative focuses on the enforcement aspect, emphasizing that the rule or requirement is actively monitored and upheld.
is non-negotiable
This alternative indicates that the requirement cannot be challenged or altered, highlighting its absolute and inflexible nature.
FAQs
How can I use "is obligatory" in a sentence?
You can use "is obligatory" to indicate that something is required or mandatory. For example, "Attendance at the safety briefing "is obligatory" for all new employees."
What phrases can I use instead of "is obligatory"?
You can use alternatives like "is required", "is mandatory", or "is compulsory" depending on the context.
Which is correct: "is obligatory" or "is obligated"?
"Is obligatory" means something is required or compulsory. "Is obligated" means someone feels bound or compelled to do something. They have different meanings and uses. "Attendance is obligatory". "He is obligated to help."
What's the difference between "is obligatory" and "is optional"?
"Is obligatory" means something "is required" and must be done. "Is optional" means something is not required and can be chosen. For example, "The uniform is obligatory, but the hat is optional."
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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
4.5/5
Expert rating
Real-world application tested