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
not perfectly correct
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "not perfectly correct" is correct and usable in written English.
It can be used to indicate that something is close to being accurate but has some errors or imperfections. Example: "The translation is not perfectly correct, but it conveys the main idea."
✓ Grammatically correct
Science
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
3 human-written examples
In Figure 3, the MIS-based MP-PF suffers from huge accuracy degradation due to high measurement noise, especially for large P. As the noise strength is large, the particle with highest weight is not perfectly correct.
While there is some variation (i.e., participants are not perfectly correct at inferring the 3D structure when two sides are visible), 51%% of the responses fell with 10° of the correct answer and 75%% of the responses fell within 20° of the correct answer.
Our results show that, even after error correction with TreeFix-DTL or other methods, the inferred gene trees are often not perfectly correct (Table 1).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
There is, however, a systematic decreasing trend in the corrected 176Hf/177Hf ratio with increasing Yb/Hf ratios, indicating that mass bias is not perfectly corrected by the exponential law for samples high in Yb.
One of Peirce's favorite examples helps elucidate the idea, even if it perhaps be not perfectly politically correct: Every Texan kills some Texan; no Texan is killed by more than one Texan; therefore every Texan is killed by some Texan.
Science
However, there is a systematic increasing trend in the corrected 143Nd/144Nd ratio with increasing Sm/Nd ratios, implying that the mass bias may not be perfectly corrected by the exponential law for high-Sm/Nd (> 0.5) samples.
The phase compensation of the equalizer is thus not able to perfectly correct the PA phase distortion.
And as it turns out, they are perfectly correct -- optimism doesn't work for them.
News & Media
The old-school dishes are perfectly correct (in French terms, high praise if not wild enthusiasm): a $1 "egg mayo" with fresh mayonnaise, duck à l'orange ($26), choucroute garnie ($32), roast lamb with potato gratin ($36), raspberry vacherin ($10).
News & Media
Because forecast models based upon the equations for atmospheric dynamics do not perfectly determine weather conditions, statistical methods have been developed to attempt to correct the forecasts.
Wiki
Yet it also derives from a correct apprehension that Mr Johnson's personal interests and those of his party are not perfectly aligned.If the Tories lose the election, David Cameron will be out on his ear.
News & Media
Expert writing Tips
Best practice
When using "not perfectly correct", clarify the extent of the inaccuracy or provide specific corrections to avoid ambiguity. Be precise about what is correct.
Common error
Avoid using "not perfectly correct" when the subject is fundamentally wrong. This phrase is best suited for situations where there are minor errors, rather than complete falsehoods.
Source & Trust
85%
Authority and reliability
4.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "not perfectly correct" functions as an adverbial phrase modifying an adjective, serving to qualify the degree of correctness. Based on the examples provided by Ludwig, it's used to temper claims or assessments.
Frequent in
Science
40%
News & Media
40%
Formal & Business
20%
Less common in
Wiki
0%
Reference
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "not perfectly correct" is a grammatically sound phrase used to indicate that something has a degree of accuracy but isn't without flaws. As Ludwig AI confirms, the phrase is correct and usable in written English. While not extremely common, it appears across diverse sources, especially in science and news. When using this phrase, it's vital to clarify the nature of the inaccuracies to avoid ambiguity. Remember, "not perfectly correct" is most appropriate when describing something with minor errors, rather than something fundamentally wrong.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
not entirely accurate
Similar in structure but uses "entirely" instead of "perfectly", implying a less severe deviation.
imperfectly accurate
Uses an adverb to describe the accuracy, keeping a formal tone.
somewhat inaccurate
Replaces the negative with a direct qualifier of accuracy, changing the tone slightly.
not completely right
Replaces "correct" with "right" for a more conversational tone.
slightly off
Uses a more informal and vague term to indicate a minor error.
not quite precise
Shifts the focus to precision rather than general correctness.
marginally wrong
Indicates that the statement or information is only slightly off the mark.
partially incorrect
Highlights that only a portion of the information is wrong.
a bit flawed
Focuses on the presence of flaws rather than the absence of perfection.
somewhat erroneous
Uses a more formal term for "incorrect", indicating a clear error.
FAQs
What does "not perfectly correct" mean?
The phrase "not perfectly correct" means something is mostly accurate but contains some errors or imperfections. It implies that while the information isn't entirely wrong, it isn't flawless either.
How can I use "not perfectly correct" in a sentence?
You can use "not perfectly correct" to describe data, calculations, estimations, or even opinions. For example: "The data is "not perfectly correct", but it's close enough for our purposes."
What are some alternatives to saying "not perfectly correct"?
You can use alternatives like "somewhat inaccurate", "slightly off", or "not entirely accurate" depending on the context.
Is there a difference between "not perfectly correct" and "incorrect"?
"Not perfectly correct" implies a degree of accuracy with some errors, while "incorrect" suggests something is simply wrong. The former is less absolute than the latter.
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
85%
Authority and reliability
4.2/5
Expert rating
Real-world application tested