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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
that's a mistake
Grammar usage guide and real-world examplesAlternative expressions(4)
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
40 human-written examples
"Er, that's a mistake," Ms. Padmore said.
News & Media
Labour's experience suggests that's a mistake.
News & Media
That's a mistake.
Academia
But that's a mistake.
News & Media
"That's a mistake I made.
News & Media
And that's a mistake.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
20 human-written examples
Sorry, that was a mistake.
News & Media
In retrospect, that was a mistake.
News & Media
SPEER: No, that is a mistake.
Academia
But that's a mistaken assumption.
News & Media
That's a mistaken idea.
News & Media
Expert writing Tips
Best practice
When using "that's a mistake", be specific about what the mistake is and why it's considered a mistake. This provides clarity and avoids ambiguity.
Common error
While acceptable in casual conversation, relying heavily on "that's a mistake" in formal writing can make your tone seem dismissive or lacking in sophistication. Opt for more precise and nuanced language to convey your message effectively.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that's a mistake" primarily functions as an assessment or evaluation of a situation, action, or statement. It serves to identify something as incorrect or erroneous. As demonstrated by Ludwig examples, it directly points out flaws or errors.
Frequent in
News & Media
60%
Academia
25%
Formal & Business
5%
Less common in
Science
5%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "that's a mistake" is a grammatically sound and frequently used expression to indicate an error or incorrect judgment. Ludwig AI confirms its general correctness. With a neutral tone suitable for various contexts, including news, academia, and business, its primary function is to express disagreement or correction. While versatile, it's beneficial to consider more formal alternatives in certain writing situations. Authoritative sources frequently employ this phrase, highlighting its widespread acceptance and understandability.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that was an error
Focuses on the past occurrence of the mistake.
that's incorrect
Directly states the information is not correct.
that's an oversight
Suggests the mistake was due to a lack of attention.
that's a blunder
Emphasizes the seriousness of the mistake.
that's a miscalculation
Highlights that the mistake was due to an incorrect calculation.
that's an error in judgment
Focuses on the decision-making process that led to the mistake.
that's a faux pas
Implies a social error or breach of etiquette.
that's a slip-up
Suggests a minor, unintentional mistake.
that's my bad
Informal way of admitting a mistake.
that's on me
Takes personal responsibility for the mistake.
FAQs
What are some alternatives to saying "that's a mistake"?
Depending on the context, you could use phrases like "that was an error", "that is incorrect", or "that is an oversight".
Is "that's a mistake" appropriate for formal writing?
While grammatically correct, "that's a mistake" might be considered too informal for some formal writing contexts. Consider using a more sophisticated alternative like "that is a misjudgment" or "that was ill-advised".
How can I use "that's a mistake" effectively in a sentence?
To use "that's a mistake" effectively, ensure you clearly identify what the mistake is and, if necessary, explain why it's considered a mistake. For example, "Assuming the project would be completed on time without additional resources? "That's a mistake" that could lead to serious delays".
What's the difference between "that's a mistake" and "that was a mistake"?
"That's a mistake" generally refers to a mistake that is currently being made or has just been discovered. "That was a mistake" refers to a mistake that occurred in the past.
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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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested