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
less than substantial
Grammar usage guide and real-world examplesUSAGE SUMMARY
"less than substantial" is correct and can be used in written English.
You can use it to describe something that is not substantial, or has a small amount of something. For example, "The data provided was less than substantial, making it difficult to draw any conclusions."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
insignificant
minor
negligible
inadequate
scarcely significant
not especially significant
relatively minor
slightly underwhelming
somewhat insignificant
somewhat deficient
marginally adequate
less than crucial
less than great
less than essential
less than serious
less than notable
less than huge
less than remarkable
less than important
less than large
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
5 human-written examples
There appears to be no indication that Radomski's cooperation was anything less than substantial.
News & Media
And 25 percent of those in the top 1 percent pay less than substantial numbers of households in the upper three quintiles.
News & Media
Of course, a sunny, uncomplicated 50-minute piece in the context of a long five-show day will come as a real breath of fresh air to the beleaguered critic, but it often feels that outside fringe time, few regular theatres will ever take a punt on anything deemed less than substantial.
News & Media
The added heft and weight make it feel like a much more comfortable handful than many current-day devices, which can tend to feel cheap or less than substantial, especially when they use plastic as their primary case material.
News & Media
Excluding the items found to have been agreed on less than substantial in the inter-observer analysis in paper I in addition to the ones not related to the underlying constructs, we proposed TBscoreII consisting of cough, dyspnea, chest pain, anemia, BMI<18, BMI<16, MUAC<220 mm, and MUAC<200 mm.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Most lenders are simply not interested in borrowers with anything less than a substantial deposit".
News & Media
"It is abundantly clear from the views of your reps at the meeting that Network Rail's offer simply isn't good enough and we demand nothing less than a substantial improvement".
News & Media
He cites figures from the archaeologist Heinrich Haerke that the Anglo-Saxon invasions that began in the fourth century A.D. added about 250,000 people to a British population of one to two million, an estimate that Dr. Oppenheimer notes is larger than his but considerably less than the substantial replacement of the English population assumed by others.
News & Media
Still, the practical result was that anything less than a substantial victory by Mr. Kerry could be portrayed by his opponents as a setback, which is what was happening throughout the day as the campaigns got early glimpses of the results of surveys of voters leaving the polls.
News & Media
When we restricted the analysis to the seven trials with clearly concealed allocation, explicit blinding of patients, and dropout rate less than 15%, substantial heterogeneity existed in the comparison between acupuncture and placebo acupuncture (P=0.01, I=63%).
Science
Based on rates of daily change in PCB levels reported by Bloom and colleagues [ 31], variability due to changes in PCB levels over three days after delivery would be small and considerably less than the substantial inter-individual variability of maternal PCB levels we observed in this sample [ 4].
Expert writing Tips
Best practice
When aiming for precision, consider alternatives like "insignificant", "minor", or "negligible" depending on the specific context and the degree of insufficiency you wish to convey. Using the right alternative will add clarity to your writing.
Common error
While "less than substantial" is grammatically sound, it can sometimes sound less direct than alternatives in formal writing. Instead of saying "The evidence was less than substantial", consider a more concise statement like "The evidence was weak" for a stronger impact.
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "less than substantial" functions as a qualifier, indicating that something does not meet a certain threshold of significance or size. Ludwig confirms its grammatical correctness. It's used to describe qualities, quantities, or impacts that are below what might be expected or desired.
Frequent in
Science
50%
News & Media
50%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "less than substantial" is a grammatically correct way to express that something is not significant, large, or impactful. Ludwig identifies it as acceptable for use, particularly in analytical contexts across both news and scientific domains. While relatively infrequent, its nuanced meaning can be useful. When writing, consider alternatives like "insignificant", "minor", or "negligible" for greater precision or conciseness. Be mindful of overuse in formal contexts where more direct adjectives might be more effective. Understanding these nuances will aid in crafting clear and impactful communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
scarcely significant
Highlights the minimal impact or importance.
not especially significant
Uses "not especially" to imply a certain weakness.
hardly considerable
Emphasizes the lack of noteworthiness or significance.
relatively minor
Implies a lower level of importance or impact.
slightly underwhelming
Emphasizes a sense of disappointment due to a lack of impact.
somewhat insignificant
Expresses a slightly stronger degree of insignificance.
somewhat deficient
Focuses on a lack of something necessary or expected.
not particularly large
Focuses on the quantity or size being less than expected.
reasonably trivial
Implies that something is ordinary and not worth much consideration.
marginally adequate
Suggests barely meeting the minimum requirement.
FAQs
How can I use "less than substantial" in a sentence?
You can use "less than substantial" to describe something that is not large, significant, or impactful. For example: "The evidence presented was "less than substantial", so the judge dismissed the case."
What are some alternatives to "less than substantial"?
Depending on the context, you could use alternatives like "insignificant", "minor", "negligible", or "inadequate".
Is it better to use "less than substantial" or a more direct adjective?
In formal writing, a more direct adjective like "weak" or "insufficient" might be preferable for conciseness. However, "less than substantial" can be useful when you want to soften the statement or indicate a nuanced degree of insufficiency.
What is the difference between "less than substantial" and "not substantial"?
Both phrases convey a similar meaning, but "less than substantial" might imply a slightly lower degree of impact or significance. "Not substantial" simply states that something is not substantial, while "less than substantial" suggests it falls short of being so.
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
4.1/5
Expert rating
Real-world application tested