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
that's untrue
Grammar usage guide and real-world examplesAlternative expressions(3)
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
27 human-written examples
David Karpf, an associate professor at George Washington University who studies the political use of data, calls the firm's claim to have special psychometric powers "a marketing pitch" that's "untrue".
News & Media
"No, that's untrue," Mr. Tortora said.
News & Media
To prove that's untrue, I plan to make a big bonfire out of £20 notes and dance around it down the library, when they shut it down for lack of funds.
News & Media
"Obviously you have to have a positive reaction to the comments," said Marshall Front, chairman of Front Barnett Associates, a Chicago-based invesment couseling firm, "because he's not going to intentionally say someing that's untrue or deceptive, or else he'd end up in serious trouble".
News & Media
He knows that's untrue, but he has the audacity to ignore history and make a comment so ludicrous it should curl your hair.
News & Media
Trump has said the national murder rate is the highest it has been in nearly a half-century ― a claim that's untrue.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
33 human-written examples
But she said in an interview that was untrue.
News & Media
There is nothing in it that is untrue," Ioffe said.
News & Media
"People will say things that are untrue and harsh," she added.
News & Media
They have put words in your mouth that are untrue".
News & Media
Anything else would be speculation that is untrue".
News & Media
Expert writing Tips
Best practice
Use "that's untrue" when directly contradicting a statement or claim. It provides a clear and concise way to express disagreement.
Common error
While effective in informal settings, "that's untrue" can sound too blunt in formal writing. Consider alternatives like "that is inaccurate" or "that statement is not supported by evidence" for a more professional tone.
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that's untrue" functions as a declarative statement used to negate a previous assertion. It's a direct way of expressing disagreement, contradiction, or denial. As shown by Ludwig, it's used to refute claims across various contexts.
Frequent in
News & Media
55%
Wiki
15%
Science
10%
Less common in
Formal & Business
10%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "that's untrue" is a common and direct phrase used to contradict or deny a statement. Ludwig's analysis reveals its prevalence in news and media, as well as its suitability for informal contexts. While grammatically correct, remember to adjust your tone in more formal settings by using alternative expressions such as "that is incorrect" or "that is false".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that's simply not true
Adds emphasis with "simply" to reinforce the disagreement.
that is false
Replaces the contraction "that's" with "that is" and uses "false" instead of "untrue".
that's incorrect
Replaces "untrue" with "incorrect", indicating factual inaccuracy.
that's inaccurate
Replaces "untrue" with "inaccurate", suggesting a lack of precision.
that's not the truth
Expresses disagreement by stating that something is "not the truth".
that's unfounded
Indicates the statement lacks a basis in fact or evidence.
that's a lie
Substitutes "untrue" with the stronger term "a lie".
that's a fabrication
Uses the word "fabrication" to emphasize that something is invented or made up.
that's a misconception
Suggests the statement is a commonly held but incorrect belief.
that's a myth
Implies that the statement is a widely believed but false story.
FAQs
What does "that's untrue" mean?
"That's untrue" is a direct way of saying that a statement is not true or is false. It's a simple and common way to express disagreement or contradiction.
When is it appropriate to use "that's untrue"?
It's appropriate to use "that's untrue" in informal conversations, debates, or discussions where you want to directly refute a statement. However, in more formal or professional settings, consider using a more nuanced or polite expression.
What are some alternatives to saying "that's untrue"?
Alternatives include phrases like "that is false", "that's incorrect", or "that's inaccurate", depending on the specific context and the level of formality required.
Is "that's untrue" grammatically correct?
Yes, "that's untrue" is grammatically correct. "That's" is a contraction of "that is", and "untrue" is a valid adjective meaning not true or false.
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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
4.1/5
Expert rating
Real-world application tested