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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
is not optional
Grammar usage guide and real-world examplesUSAGE SUMMARY
The part of sentence "is not optional" is correct and can be used in written English.
You can use it when you are emphasizing that an action or decision is mandatory and not up for debate. For example, "Wearing a face mask in public is not optional."
✓ Grammatically correct
News & Media
Academia
Science
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
60 human-written examples
Finance: Mobile Banking Is Not Optional Drew McLelland says that mobile banking is not optional "for financial institutions that want to be in business in 2020".
News & Media
Death is not optional.
News & Media
Elegance is not optional.
Homework is NOT optional.
Academia
"Paying tax is not optional".
News & Media
The fee is not optional.
It said, "Significant change is not optional".
News & Media
Reviewing the force resolution is not optional.
News & Media
Yet the task is not optional.
News & Media
In some places, voting is not optional.
News & Media
Putting up the poster is not optional.
News & Media
Expert writing Tips
Best practice
Use "is not optional" to clearly communicate that a certain action or decision is mandatory and not subject to personal preference.
Common error
Avoid using "is not optional" when you mean to say something is an alternative. "Optional" means it can be chosen or not, whereas an alternative is a different choice. For example, instead of saying 'Using a different method is not optional', consider 'An alternative method is available'.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is not optional" functions as a predicate adjective, indicating that something is compulsory or required. Ludwig AI confirms this by showcasing its use across varied contexts where adherence is emphasized rather than choice.
Frequent in
News & Media
48%
Academia
25%
Science
15%
Less common in
Wiki
5%
Formal & Business
5%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, the phrase "is not optional" is a versatile and frequently used expression to convey that something is mandatory or required, leaving no room for choice. As highlighted by Ludwig AI, its usage spans across various contexts, primarily in news, academic, and scientific domains. While grammatically straightforward, it's important to avoid misusing it in place of terms like "alternative". When seeking alternatives, consider options like "is mandatory", "is required", or "is essential", depending on the desired nuance. By understanding its function, purpose, and typical usage patterns, you can effectively employ "is not optional" to emphasize the necessity of actions or decisions.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is mandatory
Emphasizes a legal or formal requirement.
is required
Highlights a need based on a rule or standard.
is essential
Stresses the importance for a specific outcome.
is imperative
Indicates a sense of urgency and high necessity.
is a must
Informal way to express something indispensable.
is obligatory
Highlights a moral or ethical requirement.
cannot be avoided
Focuses on the lack of alternatives.
is unavoidable
Similar to 'cannot be avoided', but implies a natural or logical necessity.
is a prerequisite
Specifies that something is necessary before something else can happen.
is non-negotiable
Emphasizes that there is no room for compromise or discussion.
FAQs
How to use "is not optional" in a sentence?
You can use "is not optional" to emphasize that something is mandatory or required. For instance, "Submitting your application on time is not optional." It indicates that there's no choice but to comply.
What can I say instead of "is not optional"?
You can use alternatives like "is mandatory", "is required", or "is essential" depending on the specific context you're using it in.
Which is correct, "is not optional" or "is mandatory"?
Both "is not optional" and "is mandatory" are correct, but they have slightly different connotations. "Is not optional" simply means that something is required and not a choice. "Is mandatory" implies a formal requirement, often by rule or law. Choose the phrase that best fits the context.
What's the difference between "is not optional" and "is now optional"?
"Is not optional" means that something is required, and there's no choice. In contrast, "is now optional" means that something was previously required but is now a choice. For instance, "Wearing a mask was not optional during the pandemic, but it is now optional in many places".
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested