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
made the error of assuming
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "made the error of assuming" is correct and usable in written English.
You can use it when discussing a mistake that was made due to an incorrect assumption. Example: "She made the error of assuming that everyone would agree with her decision."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(2)
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
2 human-written examples
Quite honestly, I had made the error of assuming what my students would think ahead of time, and as a result wasn't prepared.
News & Media
But it is also one of those ideas on which a very cute fable could be built, provided sufficient contrivance of comedy went along with it.Unfortunately, Valentine Davies, who wrote the script for this film, made the error of assuming that the idea was sufficiently funny by itself and that it needed no great elaboration or clever writing to make a winning show.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
Many managers make the error of assuming they are the office mentor for their newbies.
News & Media
Richard Wainwright, the late Liberal MP for Colne Valley, once perceptively remarked that Holme was so acutely aware of his many talents that he made the error of taking on too many tasks: he assumed the roles of both chairman and chief executive when it would have been optimal to have delegated and chosen either one or the other.
News & Media
"I made the error of waiting too long, I hesitated.
News & Media
Second, feminist research has successfully shown the error of assuming stable boundaries between public and private.
Academia
So we make the error of confirmation and assume that it won't change that much going forward.
News & Media
England did precisely as well at last year's World Cup as those in touch with rugby reality anticipated, but only half as well as hoped by the vast multitudes who made the fundamental error of assuming Martin Johnson's stellar playing career automatically qualified him for the very different role of national manager.
News & Media
England did precisely as well at last year's World Cup as those in touch with reality had anticipated, but only half as well as hoped by the vast multitudes who made the fundamental error of assuming Martin Johnson's stellar playing career automatically qualified him for the very different role of national manager.
News & Media
So I'd made the schoolgirl error of assuming this must be exactly what she's like in real life.
News & Media
I remembered reading and loving it as an undergraduate, and I made the classic error of assuming my class of bright 14 year-olds would enjoy it too.
News & Media
Expert writing Tips
Best practice
When using "made the error of assuming", ensure the context clearly explains why the assumption was incorrect and what the consequences were.
Common error
Avoid using "made the error of assuming" for minor oversights. This phrase implies a significant misjudgment with noticeable repercussions. For less critical situations, consider milder alternatives like "misunderstood" or "miscalculated".
Source & Trust
88%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "made the error of assuming" functions as a means of expressing a misjudgment based on a flawed assumption. Ludwig confirms its correctness in written English. It identifies a specific kind of error where someone acts on an incorrect premise.
Frequent in
News & Media
50%
Academia
25%
Science
25%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "made the error of assuming" is a grammatically correct phrase used to express a mistake based on a flawed assumption. As noted by Ludwig, this phrase is best suited for contexts where a significant misjudgment has occurred. While versatile enough for news, academic, and professional settings, it should be used with caution in casual conversations where simpler alternatives might be more appropriate. Remember to clearly explain the reason of the error and the negative consenquences to maximize the utility of this phrase in your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
erred in the assumption
Focuses on the act of making an incorrect assumption, using 'erred' instead of 'made the error'.
incorrectly assumed
Directly states the incorrectness of the assumption, simplifying the original phrase.
mistakenly believed
Replaces 'assuming' with 'believed', emphasizing the false belief underlying the error.
wrongly presumed
Substitutes 'assumed' with 'presumed', indicating a taking for granted without adequate evidence.
made a faulty assumption
Highlights the defectiveness of the assumption itself, rather than the act of assuming.
fell into the trap of assuming
Indicates a common pitfall, suggesting the assumption was an easy mistake to make.
operated under the false assumption
Emphasizes that actions were based on an incorrect premise.
labored under the misapprehension
Uses 'misapprehension' to denote the misunderstanding leading to the error.
jumped to the conclusion that
Suggests a hasty and unwarranted assumption was made.
took for granted that
Implies an assumption was made without proper consideration or questioning.
FAQs
How can I rephrase "made the error of assuming" to sound more formal?
For a more formal tone, consider alternatives like "erred in the assumption" or "operated under the false assumption".
What's the difference between "made the error of assuming" and "incorrectly assumed"?
"Made the error of assuming" emphasizes the mistake in making the assumption, while "incorrectly assumed" directly states that the assumption itself was wrong. The first one is also more emphatic.
Is "made the error of assuming" too harsh for everyday conversation?
In casual conversation, it might sound overly critical. Simpler alternatives like "mistakenly believed" or "wrongly thought" are often more appropriate.
Can "made the error of assuming" be used in a positive context?
No, this phrase always carries a negative connotation, implying a mistake or misjudgment. It's not suitable for situations where an assumption turned out to be correct or beneficial.
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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
4.3/5
Expert rating
Real-world application tested