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
this is serious
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "this is serious" is correct and usable in written English.
You can use it when something is of grave importance and requires immediate attention. For example: "This is serious; we need to take action as soon as possible to fix the problem."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
that sounds great
that sounds ominous
that seems fair
that sounds bad
that sounds reasonable
that seems concerning
this is difficult
that sounds acceptable
that sounds fair
that sounds difficult
that sounds real
this is crucial
that sounds wise
this is troubling
that seems acceptable
I understand
this is extreme
that appears critical
this is alarming
this is critical
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
57 human-written examples
Now this is serious!
News & Media
But this is serious".
News & Media
This is serious theatre".
News & Media
MARK: This is serious.
News & Media
This is serious and significant.
News & Media
This is serious business here".
News & Media
None of this is serious.
News & Media
I mean, this is serious.
News & Media
"You know, this is serious.
News & Media
I thought, this is serious".
News & Media
This is serious advice.
News & Media
Expert writing Tips
Best practice
When using "this is serious", ensure the context provides enough information for the audience to understand why the situation is serious.
Common error
Avoid using "this is serious" in situations that are clearly not serious. Overusing the phrase can diminish its impact when it's truly needed.
Source & Trust
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "this is serious" functions as an assertion, used to declare the importance or severity of a situation. Ludwig AI confirms its grammatical correctness and widespread usability. Examples show it used to highlight critical issues that require immediate attention or concern.
Frequent in
News & Media
59%
Science
17%
Formal & Business
8%
Less common in
Wiki
5%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "this is serious" is a common and grammatically sound way to convey the importance or severity of a situation. Ludwig AI validates its wide applicability, supported by numerous examples from news, scientific, and business contexts. While versatile, it's crucial to reserve its use for situations where the gravity genuinely warrants such emphasis, preventing overuse from diluting its impact. Related phrases such as "this is critical" or "the situation is grave" can offer nuanced alternatives, and considering the context is key to effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
this is critical
Replaces "serious" with a synonym emphasizing the importance of the situation.
this is crucial
Similar to "critical", highlights the necessity of addressing the issue.
this is of great importance
A more formal way of expressing the significance of something.
this is no laughing matter
Emphasizes the lack of humor in the situation, highlighting its severity.
the situation is grave
Focuses on the seriousness of the situation itself.
we have a serious problem
Shifts the focus to the existence of a problem, implying urgency.
this demands immediate attention
Highlights the need for urgent action.
this is a matter of urgency
Emphasizes the time-sensitive nature of the issue.
this is alarming
Highlights the worrying or disturbing nature of the situation.
the stakes are high
Emphasizes the potential consequences of the situation.
FAQs
How can I use "this is serious" in a sentence?
You can use "this is serious" to emphasize the importance or severity of a situation. For example: "The data breach is extensive; "this is serious" and requires immediate action."
What are some alternatives to "this is serious"?
Some alternatives include "this is critical", "this is crucial", or "the situation is grave", depending on the specific context.
Is it appropriate to use "this is serious" in formal writing?
Yes, "this is serious" can be used in formal writing to convey the severity of a situation. However, consider using more formal alternatives like "this is of great importance" for a more sophisticated tone.
When should I avoid using "this is serious"?
Avoid using "this is serious" in casual or lighthearted situations where its tone would be inappropriate. It's best reserved for scenarios where the gravity of the matter needs to be clearly emphasized.
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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
88%
Authority and reliability
4.6/5
Expert rating
Real-world application tested