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
vigilance is necessary
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "vigilance is necessary" is correct and usable in written English.
You can use it when emphasizing the importance of being alert and watchful in a particular situation or context. Example: "In times of uncertainty, vigilance is necessary to ensure the safety and security of our community."
✓ Grammatically correct
News & Media
Science
Wiki
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
12 human-written examples
When will we learn that thoughtful vigilance is necessary in our world today?
News & Media
But our work is not done and vigilance is necessary to prevent new outbreaks," she added.
News & Media
Like Microsoft, Google has enormous power in its market, so regulatory vigilance is necessary.
News & Media
It is the job of the regulators to apply whatever extra vigilance is necessary to prevent it from doing so.
News & Media
One refers to the current Arab uprisings and an old canard from Syrian governments that a police state's vigilance is necessary to recapture the Golan Heights, lost to Israel in 1967.
News & Media
It is generally recognized that a high level of vigilance is necessary and highly desirable, but it should also be considered that GMOs are a promising new challenge for the III Millennium societies, with remarkable impact on many disciplines and fields related to biotechnology.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
46 human-written examples
Richard Katz, an MTA board member who was appointed to the Metrolink board by Los Angeles Mayor Antonio Villaraigosa after the Chatsworth crash, acknowledged that Metrolink hasn't "always maintained the vigilance that is necessary".
News & Media
But I've lived long enough to know vigilance is still necessary and probably will be for a long time to come.
News & Media
To understand the true incidence of C. gattii inside and outside the PNW, vigilance among physicians nationwide is necessary.
Science
This indicated that a pre-alarm device is necessary because vigilance decreased with time.
Science
Since an unbalanced distribution of vigilance stages (e.g. the exclusive presence of one vigilance stage) would make it unfeasible to test the study hypotheses, a minimum of vigilance variability within the same individual is necessary.
Expert writing Tips
Best practice
Use "vigilance is necessary" when you want to emphasize the ongoing need for alertness and careful observation, especially in situations where potential threats or risks exist. Consider using synonyms like "alertness is crucial" /s/alertness+is+crucial for a slightly different tone.
Common error
While "vigilance is necessary" is grammatically correct, avoid using it excessively in casual conversation or informal writing. Opt for more relaxed alternatives like "we need to be careful" or "we should keep an eye on things" in such settings.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "vigilance is necessary" functions as a declarative statement emphasizing the importance of being watchful and alert. It asserts that vigilance is not merely desirable but essential in a given context. Ludwig AI confirms its correctness and usability.
Frequent in
News & Media
40%
Science
40%
Wiki
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "vigilance is necessary" is a grammatically sound and frequently used phrase that conveys the crucial need for watchfulness and alertness. Ludwig AI confirms that "vigilance is necessary" is correct and usable in written English. It is particularly common in news, scientific, and wiki contexts, reflecting its applicability in situations where caution and awareness are paramount. While versatile, it's best to avoid overuse in very informal settings, opting for more casual expressions instead. As an alternative, "alertness is crucial" or "watchfulness is essential" can provide similar meaning with a slightly different emphasis.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
alertness is crucial
Replaces "vigilance" with "alertness" and "necessary" with "crucial", slightly altering the tone.
watchfulness is essential
Substitutes "vigilance" with "watchfulness" and "necessary" with "essential", maintaining a formal tone.
remaining vigilant is important
Changes the structure to emphasize the act of "remaining vigilant" rather than stating a direct need.
it is imperative to be watchful
Employs a more formal and emphatic tone using "imperative" and "watchful".
careful observation is required
Focuses on the action of "careful observation" instead of the state of vigilance.
constant monitoring is key
Highlights the continuous nature of the action using "constant monitoring" and emphasizes its importance using "key".
sustained attention is a must
Emphasizes the need for "sustained attention" rather than general vigilance.
scrutiny is indispensable
Replaces "vigilance" with "scrutiny" and "necessary" with "indispensable", increasing the formality and intensity.
attentiveness is paramount
Highlights the importance of attentiveness as being of highest importance.
prudence dictates watchfulness
Implies that watchfulness is a smart choice and replaces necessary with dictates.
FAQs
How can I use "vigilance is necessary" in a sentence?
Use "vigilance is necessary" to highlight the importance of being watchful and alert in a particular situation. For example, "In the face of increasing cyber threats, vigilance is necessary to protect sensitive data".
What are some alternatives to saying "vigilance is necessary"?
You can use alternatives such as "alertness is crucial", "watchfulness is essential", or "remaining vigilant is important" depending on the context.
Is it more appropriate to say "vigilance is necessary" or "vigilance is important"?
Both "vigilance is necessary" and "vigilance is important" are grammatically correct and convey a similar meaning. "Necessary" suggests that vigilance is essential and indispensable, while "important" indicates that it is significant and valuable. The choice depends on the degree of emphasis you want to convey.
What is the difference between "vigilance is necessary" and "vigilance is required"?
The phrases "vigilance is necessary" and "vigilance is required" are very similar in meaning. "Necessary" implies that something is essential, whereas "required" suggests that something is demanded or obligatory. In most contexts, they are interchangeable.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested