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
substantially different
Grammar usage guide and real-world examplesUSAGE SUMMARY
"substantially different" is a correct and usable phrase in written English.
You can use it to describe two or more objects, ideas, or people which have large, significant differences between them. For example: "Their approaches to the problem were substantially different."
✓ Grammatically correct
News & Media
Science
Academia
Encyclopedias
Alternative expressions(20)
significantly distinct
markedly dissimilar
considerably diverse
distinctly contrasting
largely disparate
substantially distinct
dramatically different
far different
substantially dissimilar
appreciably different
distinctly different
markedly different
vastly different
noticeably different
substantially diverse
essentially different
drastically different
substantially divergent
severely different
substantially varied
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
(Substantially different 2004 working paper).
Academia
The arrangement is not substantially different, either.
News & Media
Initial vote counts showed substantially different results.
News & Media
Interestingly, these datasets are substantially different.
News & Media
The reality, however, was substantially different.
News & Media
The Devils will have a substantially different look next season.
News & Media
Side-scrolling platformer Limbo is a substantially different affair.
News & Media
But for many beneficiaries, the reality may be substantially different.
News & Media
It must have a substantially different approach to the Conservatives.
News & Media
There are two substantially different versions of Woods.
News & Media
But for some, the reality is substantially different.
News & Media
Expert writing Tips
Best practice
Use "substantially different" to clearly indicate that the dissimilarities are significant, not just minor variations. This helps avoid ambiguity and ensures your message is accurately conveyed.
Common error
Avoid using "substantially different" when the differences are merely superficial or slight. Overusing the phrase can diminish its impact and credibility.
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "substantially different" primarily functions as an adjectival modifier, used to describe nouns or noun phrases. It indicates that the entities being compared possess considerable and noteworthy dissimilarities. According to Ludwig AI, it emphasizes the significant differences between items.
Frequent in
News & Media
55%
Science
25%
Academia
8%
Less common in
Encyclopedias
5%
Formal & Business
4%
Reference
0%
Ludwig's WRAP-UP
In summary, "substantially different" is a versatile and frequently used phrase to emphasize significant dissimilarities between entities. Ludwig AI confirms its correctness and widespread use across various contexts, especially in news, science, and academic writing. While highly effective, it's crucial to use the phrase judiciously, ensuring that the differences are truly substantial, avoiding overstatement and maintaining credibility. Remember, alternatives like "significantly distinct" or "markedly dissimilar" can provide nuanced variations in meaning, depending on the intended emphasis.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
significantly distinct
Emphasizes a notable difference that is easily recognized.
markedly dissimilar
Highlights a clear and easily observable lack of resemblance.
considerably diverse
Focuses on variety and differences across multiple aspects.
distinctly contrasting
Stresses the presence of opposing characteristics.
materially divergent
Implies a deviation in essential or important aspects.
appreciably altered
Suggests that changes are noticeable and impactful.
noticeably varying
Indicates easily observed differences that stand out.
largely disparate
Highlights fundamental and extensive differences.
qualitatively unique
Emphasizes differences in qualities and characteristics, setting them apart.
fundamentally changed
Focuses on the basic and core differences that result in a shift.
FAQs
How can I use "substantially different" in a sentence?
Use "substantially different" to describe two or more things that have major and important differences. For instance, "The new model is "substantially different" from its predecessor."
What are some alternatives to "substantially different"?
You can use phrases like "significantly distinct", "markedly dissimilar", or "considerably diverse" depending on the specific context you are describing.
Is it appropriate to use "substantially different" in formal writing?
Yes, "substantially different" is suitable for formal writing, including academic and professional contexts, as it clearly and precisely conveys a significant level of difference.
What's the difference between "slightly different" and "substantially different"?
"Slightly different" implies minor variations, while ""substantially different"" indicates significant and impactful dissimilarities. Choose the phrase that accurately reflects 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
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested