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 less than
Grammar usage guide and real-world examplesUSAGE SUMMARY
"substantially less than" is a correct and usable phrase in written English.
You can use it when you want to emphasize the difference between two amounts or quantities, usually when one is significantly less than the other. For example, "The company's profits were substantially less than last year's."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(20)
considerably lower than
noticeably less than
markedly less than
significantly less than
markedly lower than
far lesser than
much smaller than
substantially below
substantially smaller than
marginally less than
considerable less than
greatly less than
substantially fewer than
distinctly less than
considerably less than
far less than
significantly shorter than
appreciably less than
far below
significantly slower than
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
What matters most is spending substantially less than you earn.
News & Media
"We are talking very substantially less than this year's final".
News & Media
Finally, counties with substantially less than one second ratio are combined into multicounty districts.
Academia
Black male doctors earn substantially less than white male doctors, still more than female doctors.
Academia
Late last year, Ebel was sold to Movado for substantially less than was paid for it.
News & Media
Nearly six years on, the property is worth substantially less than the couple paid for it.
News & Media
The fine on Wednesday, though large, is substantially less than that.
News & Media
It holds substantially less than a cord, not a full cord.
News & Media
"To me, the uncertainties are substantially less than there were last time," he said.
News & Media
The News Corporation's offer would have been worth about $22.5 billion, substantially less than EchoStar's.
News & Media
"The cost of a one-way ticket is substantially less than that," he said.
News & Media
Expert writing Tips
Best practice
Use "substantially less than" to clearly indicate a significant difference in amount, size, or degree between two things. This phrase adds emphasis and precision to your comparison.
Common error
Avoid using "substantially less than" when the difference is marginal or insignificant. Using this phrase implies a notable and important distinction.
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "substantially less than" functions as a comparative quantifier, highlighting a significant difference in quantity or degree between two entities. Ludwig AI confirms its validity and usability in English writing.
Frequent in
News & Media
53%
Science
27%
Academia
12%
Less common in
Encyclopedias
3%
Formal & Business
3%
Wiki
2%
Ludwig's WRAP-UP
The phrase "substantially less than" is a comparative quantifier used to emphasize a significant difference between two values. It is deemed grammatically correct and very commonly used across various sources, as confirmed by Ludwig AI. Predominantly found in News & Media, Science, and Academic contexts, it serves to highlight a noticeable disparity. When using this phrase, ensure the difference is indeed significant to avoid misrepresentation. Alternatives like ""markedly less than"" or "considerably less than" can be employed for variety, maintaining the intended emphasis.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
markedly less than
Emphasizes the noticeable difference in quantity or degree.
considerably less than
Highlights a significant reduction or decrease.
significantly lower than
Focuses on the reduced level or amount.
considerably smaller than
Emphasizes the reduced size or extent.
vastly less than
Stresses a large disparity between two quantities.
far less than
Highlights the distance between the two quantities being compared.
noticeably less than
Indicates that the difference is easily observed or detected.
dramatically less than
Suggests a sudden and significant decrease.
greatly less than
Emphasizes the large extent of the difference.
appreciably less than
Highlights that the difference is large enough to be important or significant.
FAQs
How can I use "substantially less than" in a sentence?
Use "substantially less than" to emphasize a significant difference in quantity or degree. For example: "The cost was "markedly less than" expected."
What's a good alternative to "substantially less than"?
Depending on the context, you could use phrases like "considerably less than", "significantly lower than", or "noticeably less than".
Is it appropriate to use "substantially less than" in formal writing?
Yes, "substantially less than" is suitable for formal writing as it clearly and precisely conveys a significant difference. However, ensure the context warrants the emphasis it provides.
What is the difference between "slightly less than" and "substantially less than"?
"Slightly less than" indicates a minor difference, while "substantially less than" implies a considerable and important disparity. Choose the phrase that accurately reflects the magnitude of the difference.
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
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested