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
is substantially different from
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is substantially different from" is correct and usable in written English.
It can be used to compare two things, indicating that they have significant differences. Example: "The new policy is substantially different from the previous one, which focused more on flexibility."
✓ Grammatically correct
Science
News & Media
Academia
Encyclopedias
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
60 human-written examples
That operating system is substantially different from Apple's.
News & Media
And it's luck that animates his novel, which is substantially different from the film.
News & Media
The sound that comes off Dormeshia Sumbry-Edwards's shoes is substantially different from Dorrance's.
News & Media
The construction of low-speed synchronous generators is substantially different from that of high-speed units.
Encyclopedias
Luck will join a franchise that is substantially different from the one Manning elevated to greatness.
News & Media
Either they are paranoid or their way of figuring what their interests are is substantially different from ours.
News & Media
You mention that it is substantially different from the octopus — for example, in how sensitive it is to its environment.
News & Media
You mention that it is substantially different from the octopus for example, in how sensitive it is to its environment.
News & Media
However, fluid phase behavior in a shale reservoir is substantially different from conventional behavior.
Science
But, in fact, Mr. Lieberman's message -- and his nature as a messenger -- is substantially different from that of Christian conservatives over the last 20 years.
News & Media
This 40-minute segment of "Explorer" (at the start of the program) is substantially different from a shorter version shown in March.
News & Media
Expert writing Tips
Best practice
Use "is substantially different from" to highlight significant and impactful distinctions, ensuring the reader understands the importance of the difference.
Common error
Avoid using "is substantially different from" when the differences are trivial or superficial. Opt for phrases like "is slightly different from" or "has minor variations" for less significant distinctions.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is substantially different from" functions as a comparative expression. It emphasizes the significant degree of dissimilarity between two subjects, indicating that the differences are impactful and noteworthy. Ludwig AI confirms its widespread use across various contexts.
Frequent in
Science
50%
News & Media
28%
Academia
12%
Less common in
Encyclopedias
4%
Wiki
2%
Formal & Business
0%
Ludwig's WRAP-UP
The phrase "is substantially different from" is a versatile comparative expression used to highlight significant distinctions between two entities. As confirmed by Ludwig AI, it enjoys widespread usage across diverse fields like science, news media, and academia. Its core function is to underscore impactful differences, making it a valuable tool for clarity and precision in writing. When using the phrase, remember to reserve it for differences that are truly noteworthy, avoiding overstatement of minor variations. While variations like "vastly different" and "markedly distinct" can add nuance, "is substantially different from" remains a reliable and widely accepted choice for conveying significant dissimilarity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is vastly different from
Emphasizes a greater degree of difference than the original phrase.
is markedly distinct from
Highlights a clear and noticeable distinction.
differs significantly from
A more concise way of expressing substantial difference.
is significantly unlike
Directly states a lack of similarity.
is considerably divergent from
Focuses on the idea of moving away from a common point.
contrasts sharply with
Highlights a stark and immediate difference.
is noticeably disparate from
Emphasizes the separation or inequality between two things.
is materially different from
Suggests a difference that affects the outcome or essence.
is fundamentally opposed to
Implies a deeper, more basic conflict or contrast.
bears little resemblance to
Indicates a minimal degree of similarity.
FAQs
How can I use "is substantially different from" in a sentence?
Use "is substantially different from" to compare two subjects, indicating that they possess significant, impactful differences. For instance, "The company's new strategy "is substantially different from" its previous approach, focusing now on sustainable growth".
What are some alternatives to "is substantially different from"?
Alternatives include "is vastly different from", "is markedly distinct from", or "is significantly unlike", each carrying a slightly different nuance in emphasizing the dissimilarity.
Is it appropriate to use "is substantially different from" in formal writing?
Yes, "is substantially different from" is appropriate for formal writing. Its clear and precise language makes it suitable for academic, scientific, and professional contexts.
What's the difference between "is slightly different from" and "is substantially different from"?
"Is slightly different from" indicates minor variations, while "is substantially different from" highlights major, impactful distinctions. The choice depends on the degree of difference you want to emphasize.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested