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
could not disagree
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "could not disagree" is correct and usable in written English.
It can be used to express strong agreement with a statement or opinion, indicating that one finds it impossible to disagree with it. Example: "After hearing her argument, I could not disagree with her perspective on the issue."
✓ 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
55 human-written examples
"I could not disagree".
News & Media
Goldman could not disagree more.
News & Media
He certainly could not disagree.
News & Media
His mother could not disagree.
News & Media
Tuchman could not disagree more.
News & Media
He could not disagree more.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
5 human-written examples
Ewart Shadoff, who tried to keep pace but could not, disagreed.
News & Media
I couldn't disagree more.
News & Media
Couldn't disagree more, Nick.
News & Media
She couldn't disagree more.
News & Media
Tsehai couldn't disagree more.
News & Media
Expert writing Tips
Best practice
Use "could not disagree" to politely but firmly express complete agreement with a statement. It's more emphatic than a simple "I agree."
Common error
Avoid using "could not disagree" when you actually want to express disagreement. The phrase clearly indicates agreement, so using it to mean the opposite will confuse your readers.
Source & Trust
91%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "could not disagree" functions as an emphatic affirmation. It's a stronger way of saying "I agree", indicating that the speaker finds no room for opposition to the statement. Ludwig AI confirms this with numerous examples from diverse sources.
Frequent in
News & Media
100%
Less common in
Formal & Business
0%
Science
0%
Academia
0%
Ludwig's WRAP-UP
The phrase "could not disagree" is a common and effective way to express strong agreement, confirmed by Ludwig. Grammatically sound and widely accepted, it appears most frequently in News & Media contexts. To ensure clarity, avoid using it when you mean to disagree. Consider using alternative phrases like "completely agree" or "entirely concur" for similar emphasis. Ludwig AI validates that "could not disagree" is an appropriate tool to show full support for an idea or position.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
completely agree
Directly states agreement without negation.
entirely concur
Formal way to express complete agreement.
absolutely agree
Emphasizes agreement with certainty.
wholeheartedly endorse
Suggests a strong and enthusiastic agreement.
am in full agreement
Highlights the state of being aligned in opinion.
find myself in agreement
Indicates arriving at the same conclusion or opinion.
share the same view
Expresses having an identical perspective.
see eye to eye
Idiomatic way of saying that two people agree.
cannot help but agree
Implies a compelling reason for agreeing.
am of the same opinion
States holding a matching viewpoint or belief.
FAQs
How can I use "could not disagree" in a sentence?
The phrase "could not disagree" is used to express strong agreement. For example: "After hearing her argument, I "could not disagree" with her perspective."
What does "could not disagree" actually mean?
It means you strongly agree with something. The structure uses a double negative to affirm a position. It is synonymous to "I completely agree".
Which is correct, "I could not disagree more" or "I could not agree more" to express strong agreement?
"I "could not disagree more"" is the correct phrasing to show strong agreement, while the alternative can be confusing, as it implies you agree but not strongly.
What are some alternatives to "could not disagree"?
You can use alternatives like "I "completely agree"", "I "entirely concur"", or "I "absolutely agree"" depending on the formality of the situation.
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
91%
Authority and reliability
4.5/5
Expert rating
Real-world application tested