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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
substantially untrue
Grammar usage guide and real-world examplesUSAGE SUMMARY
"substantially untrue" is correct and usable in written English.
You can use this phrase to describe a statement that is largely untrue but contains a partial element of truth. For example, "His description of the situation is substantially untrue; while some of the details are correct, the overall picture is very different."
✓ Grammatically correct
News & Media
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
1 human-written examples
The proposition that the referendum is only a matter for the inhabitants of Scotland has become a mantra, but is of course substantially untrue.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
"Untrue, untrue," he mutters.
News & Media
Patently untrue.
News & Media
Totally untrue.
News & Media
Both untrue.
News & Media
Tragically, untrue.
News & Media
And untrue.
News & Media
That is simply untrue.
News & Media
"The allegations are untrue.
News & Media
That proved untrue.
News & Media
"Completely untrue!" I thundered.
News & Media
Expert writing Tips
Best practice
When using "substantially untrue", clarify which parts are true to avoid ambiguity and maintain credibility.
Common error
Avoid using "substantially untrue" when the statement is completely false; instead, use phrases like "completely false" or "entirely untrue."
Source & Trust
94%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "substantially untrue" functions as an adjectival modifier, specifically modifying a noun or noun phrase to indicate that something is largely but not entirely false. Ludwig AI confirms this usage with numerous examples of the phrase modifying statements or claims.
Frequent in
News & Media
100%
Less common in
Formal & Business
0%
Science
0%
Academia
0%
Ludwig's WRAP-UP
The phrase "substantially untrue" is used to describe something that is mostly false but contains some elements of truth. It functions as an adjectival modifier, typically found in news and media contexts. Ludwig AI confirms that the phrase is grammatically correct and suitable for use in written English. When employing this phrase, ensure you are precise about which aspects are untrue to avoid ambiguity. Alternatives include "largely inaccurate" or "mostly false", offering similar shades of meaning. Being aware of the fine line between "substantially untrue" and "completely untrue" is essential for precise communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
mostly false
Indicates that the majority of the statement is incorrect.
not entirely accurate
Suggests a general lack of precision and correctness.
largely inaccurate
Emphasizes the significant degree of factual errors.
not wholly true
Indicates that there are elements of falsehood present.
somewhat misleading
Focuses on the deceptive aspect of the statement.
not quite the truth
A milder way of saying something isn't entirely honest.
partially incorrect
Highlights that only a portion of the information is wrong.
partly fabricated
Implies that some elements of the statement were invented.
more fiction than fact
Highlights that the untrue elements outweigh the truthful ones.
a gross exaggeration
Emphasizes the inflated or overstated nature of the untruth.
FAQs
How can I use "substantially untrue" in a sentence?
You can use "substantially untrue" to describe a statement that has elements of truth but is largely false. For example, "His account of the events was "substantially untrue", as it omitted key details."
What's a more formal way to say "substantially untrue"?
More formal alternatives include "largely inaccurate", "mostly false", or "not entirely accurate". These phrases maintain a professional tone while conveying that the information is not entirely truthful.
What can I say instead of "substantially untrue" if I want to emphasize the misleading aspect?
If you want to highlight the misleading nature of the statement, consider using "somewhat misleading" or "deceptive". These phrases focus on the intent to deceive rather than just the inaccuracy of the information.
Is "substantially untrue" the same as "completely untrue"?
No, "substantially untrue" implies that some parts of the statement might be true, while "completely untrue" means that the entire statement is false. Using "substantially untrue" suggests a mix of truth and falsehood.
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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
94%
Authority and reliability
4.5/5
Expert rating
Real-world application tested