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
substantial but important
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "substantial but important" is not correct as it is contradictory; "substantial" implies significance, making "but important" redundant.
You can use it when trying to emphasize the importance of something that is already considered significant, but it would be better to rephrase for clarity. Example: "The findings of the study are substantial, highlighting the important implications for future research."
⚠ May contain grammatical issues
Science
News & Media
Wiki
Alternative expressions(3)
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
1 human-written examples
Validating all of the predictions made here represents a substantial but important undertaking.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Ki-67 labeling index presents more substantial challenges, but important guidelines for this test are under development [ 7, 83– 83].
Science
The Yankees are essentially fielding the same team from the end of last season, now without the substantial contributions of Nick Swisher, who on Sunday agreed to a four-year, $56 million contract with the Cleveland Indians, and the less substantial, but still important, contributions from Ibanez, who agreed to a one-year contract with the Seattle Mariners on Friday.
News & Media
The productivity costs of obesity have been well-documented in a variety of studies, with widespread consensus that such costs are substantial, but with important differences in magnitude between the individual estimates.
Evan Rytlewski of The A.V. Club wrote that "without playing into cheap 'tortured by fame' tropes, she's made an emotional album that's dense and substantial but never difficult or self-important".
Wiki
But if you're building something substantial and important, then there should be more people like me that can recognize that, who can look at A versus A prime, and say, 'Hey, A is better because they've done the work, and they'e done something that's going to matter in 15 to 20 years, and they deserve to be rewarded.'".
News & Media
Heaney leaves an substantial and important body of work; his poems always had the human touch.
News & Media
It's strange that such a substantial and important work in Lindberg's output should have gone unheard in this country for almost a decade.
News & Media
These policy changes are a substantial and important first step in limiting unnecessary and overbroad requests for reporters' information and confidential sources.
News & Media
Scientists have hailed the genetic modification of mosquitoes that could crash the insect's populations as a "quantum leap" that will make a substantial and important contribution to eradicating malaria.
News & Media
But whereas much of the classical debate takes the issue of the primary bearers of truth to be a substantial and important metaphysical one, Tarski is quite casual about it.
Science
Expert writing Tips
Best practice
When emphasizing the importance of something already substantial, consider rephrasing for clarity. For example, use "particularly important" or "especially significant" instead of "substantial but important".
Common error
Avoid using "but important" immediately after "substantial" as it can sound redundant. If you want to stress the importance, use alternatives that provide additional context or nuance.
Source & Trust
84%
Authority and reliability
3.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "substantial but important" functions as a compound adjective modifying a noun. It aims to describe something as both significant in size or amount (substantial) and of great value or consequence (important). Ludwig AI indicates this phrase is not correct because is contradictory.
Frequent in
Science
39%
News & Media
39%
Wiki
6%
Less common in
Formal & Business
4%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "substantial but important" attempts to convey that something is both significant in size/amount and carries great value. However, Ludwig AI suggests this phrase is not correct because is contradictory since "substantial" already implies a degree of importance. Grammatically, it functions as a compound adjective. While its usage is observed across various contexts like Science and News & Media, it is relatively rare. For clarity and to avoid redundancy, consider alternatives such as "significant yet noteworthy" or "particularly important". Pay attention to avoid redundancy when emphasizing the importance of something already significant.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
significant yet noteworthy
Emphasizes the noteworthiness of something already significant.
considerable yet essential
Highlights the essential nature of something already considerable.
meaningful and consequential
Stresses the lasting impact and results of something.
material and relevant
Focuses on the practical importance and pertinence.
sizeable and critical
Emphasizes the vital and crucial aspect of something large.
momentous and vital
Emphasizes the importance and cruciality of something in a particular moment.
notable and indispensable
Highlights the necessity and irreplaceability of something remarkable.
impactful and crucial
Focuses on the critical importance and power of influence.
weighty and significant
Emphasizes the importance and the high degree of notability.
valuable and strategic
Highlights the strategic advantage of something valuable.
FAQs
Is "substantial but important" grammatically correct?
While not strictly incorrect, "substantial but important" can be seen as redundant since "substantial" already implies importance. Consider alternatives for clarity.
What phrases can I use instead of "substantial but important"?
You can use alternatives like "significant yet noteworthy", "considerable yet essential", or "material and relevant" depending on the context.
How to emphasize the importance of something already significant?
Instead of saying "substantial but important", use phrases like "particularly important" or "especially significant" to add emphasis without sounding redundant.
What is the difference between "substantial and important" and "substantial but important"?
"Substantial and important" simply lists two positive attributes. "Substantial but important" implies a contrast or unexpected emphasis on the importance despite the substantial nature, which may be confusing.
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
3.2/5
Expert rating
Real-world application tested