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
so not true
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "so not true" is correct and usable in written English.
It can be used to express strong disagreement or to emphasize that something is false or inaccurate. Example: "I can't believe you think that. That's so not true!"
✓ Grammatically correct
News & Media
Wiki
Science
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
12 human-written examples
And that's so not true.
News & Media
That is so not true!
News & Media
It's so not true!
News & Media
Not true, so not true.
News & Media
But that is so not true!
News & Media
It's so not true!" Ms. Lee said.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
48 human-written examples
Which is so completely not true.
News & Media
The laws are only Galilean relativistic, and so are not true in every frame.
Science
It's so much not true.
News & Media
The frequency of these stories is truly striking for the simple reason that it's so obviously not true.
News & Media
So once again, not true.
News & Media
Expert writing Tips
Best practice
Consider the context and audience; a more formal expression might be appropriate in professional settings.
Common error
Avoid using "so not true" in academic papers, business reports, or other formal documents. Opt for more professional alternatives like "incorrect" or "false".
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "so not true" functions as an emphatic denial. It is used to strongly disagree with a statement or assertion, indicating that it is definitively false. As Ludwig AI confirms, the phrase is correct and usable, particularly in informal contexts.
Frequent in
News & Media
41%
Wiki
12%
Science
12%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "so not true" is an informal and emphatic way to express strong disagreement. Ludwig AI validates its correctness and common usage, especially in informal contexts like news articles, wikis, and casual conversation. While it's grammatically sound, it should be avoided in formal writing, where alternatives like "absolutely false" or "incorrect" are more appropriate. Its function is to directly contradict a statement, conveying a clear sense of disbelief. Always consider your audience and context when choosing whether or not to use the phrase.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that's simply not true
Adds emphasis to the denial, similar to the original phrase.
absolutely false
Emphasizes the complete lack of truth, offering a more direct denial.
utterly untrue
Similar to "absolutely false", but with a slightly stronger emphasis on the falsity.
completely incorrect
Focuses on the factual inaccuracy of the statement.
nothing could be further from the truth
Emphasizes the extreme inaccuracy of the statement.
patently wrong
Highlights the obviousness of the error.
that's a lie
A direct accusation of dishonesty.
that's not the case
A more formal way of denying the truth of a statement.
that's a fabrication
Suggests that the statement was deliberately invented.
that's a load of nonsense
Dismisses the statement as foolish or meaningless.
FAQs
What does "so not true" mean?
It's an emphatic way of saying that something is false or incorrect, often used in informal settings.
How can I use "so not true" in a sentence?
Example: "You think I like broccoli? That's "so not true"!" It is generally used as a direct response to something someone said.
What are some alternatives to "so not true"?
You can use alternatives like "absolutely false", "completely incorrect", or "that is not the case" depending on the context.
Is it appropriate to use "so not true" in formal writing?
No, it's generally considered too informal for academic or professional writing. Use more formal alternatives instead.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested