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
if not same
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "if not same" is correct and can be used in written English.
It is typically used to express the notion that two things are not the same, or that one is different from the other. Example: "I'm not sure if my opinion is the same as yours, if not same, I'm sure we can still reach an agreement."
✓ Grammatically correct
Science
News & Media
Wiki
Alternative expressions(5)
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
4 human-written examples
With this, an open-loop variable manipulation policy is formulated so that the dynamics of the heat integrated column remain close, if not same, with its conventional counterpart.
Science
And if not same day audio, then what's the problem with same week (month)(end of the Term) release?
News & Media
We classify the adjacent fragments pair (the order is maintained during fragmentation) into four groups based on whether they have the same parent nodes, or if not same parents, comparing their depths.
Science
Use warm compresses or hot baths to achieve a similar, if not same, result.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
The company is focused on serving Asia, and it claims to charge lower fees than banks and traditional remittance services like MoneyGram or Western Union — InstaRem's rate is typically less than one percent — while transactions are completed within one day, if not same-day.
News & Media
In most cases these productions had the same stars (if not the same entire casts), the same directors and even, more or less, the same scenery.
News & Media
In most cases, these productions have the same stars (if not the same entire casts), the same directors and even, more or less, the same scenery, though sometimes it's been rescaled.
News & Media
When those houses went up in the 1990s, similar, if the not same, objections were raised: density, traffic, parking, noise.
News & Media
That same intensity, if not the same compositional elegance, is shared by "Finishing the Hat" the book.
News & Media
And they know college students will unconsciously choose to sit in the same row, if not the same seat, each class.
News & Media
Turnover for 2001 was more than US$80 million, but rivals like DNA and IMG International also fight for the same pie, if not the same girls, as each competes to get the best ones.
Academia
Expert writing Tips
Best practice
Use "if not same" to clearly indicate that while there might be similarities, exact equivalence is not present. This is especially useful in scientific or technical writing where precision is important.
Common error
Avoid using "if not same" when a simple statement of inequality would suffice. For instance, instead of saying "The results were if not the same, close", say "The results were similar but not identical".
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "if not same" functions as a conjunction phrase, typically used to qualify a statement by indicating that two compared items or situations are not identical. Ludwig confirms it's used in scenarios where acknowledging potential similarity while emphasizing distinction is key.
Frequent in
Science
40%
News & Media
40%
Wiki
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "if not same" is a grammatically sound construction used to express that two items or situations are similar but not precisely identical. While Ludwig confirms its correct usage, it's relatively rare and more common in general and scientific contexts than in formal writing. The phrase serves to introduce nuance and encourage closer examination, and while acceptable, more precise alternatives like "if not identical" may be preferred in formal settings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
if not identical
Emphasizes a lack of precise equivalence, focusing on the absence of perfect identity.
if not exactly the same
Similar to 'precisely', but with a slightly more casual tone.
if not precisely the same
Adds emphasis to the lack of exact duplication or replication.
if not equivalent
Highlights a difference in value or function, implying things are not functionally interchangeable.
if not the equivalent
Slightly more formal, emphasizing the absence of a direct counterpart or substitute.
if not quite the same
Indicates a small difference or deviation from an expected standard.
if not similar
Suggests a greater degree of difference, implying only some resemblance.
if not alike
Focuses on the absence of resemblance or similarity in appearance or nature.
if not matching
Highlights a lack of correspondence or agreement, often used in comparative contexts.
if they differ
A concise way to express that two items are not the same.
FAQs
How can I use "if not same" in a sentence?
Use "if not same" to indicate a distinction between two things that might be perceived as identical or very similar. For example, "The effect is similar, if not same, as the previous method."
What's a more formal alternative to "if not same"?
A more formal alternative would be "if not identical" or "if not equivalent", which provide a higher degree of precision in formal writing.
Is "if not same" grammatically correct?
Yes, "if not same" is grammatically acceptable, though it is less common than other similar phrases. Ludwig confirms its correct usage with examples from various sources.
In what contexts is "if not same" most appropriate?
"If not same" is suitable in contexts where you want to acknowledge a potential similarity but emphasize that there is a difference. This is common in science, news and media, and general discussions.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested