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 prior to
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "substantially prior to" is correct and usable in written English.
It can be used to indicate that something occurs a significant amount of time before another event or point in time. Example: "The project must be completed substantially prior to the deadline to allow for any unforeseen issues."
✓ Grammatically correct
Science
Alternative expressions(20)
well in advance of
previously to
much better than
earlier than
far earlier than
considerably earlier than
in advance of
considerably earlier
much rather than
considerably in advance of
much early than
ages ago
ahead of time
significantly before
appreciably before
much ahead of
well in advance
well in case of
much prior to
in anticipation of
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
3 human-written examples
Likewise, they report that two stimuli occurred simultaneously in situations where the contralesional item is presented substantially prior to the ipsilesional item.
Science
The present procedure for preparing the solutions produces a potentially complicating factor; namely, the cell volumes vary substantially prior to freezing: substantially greater than isotonic in some solutions; substantially smaller in others.
Science
Additionally, although our patient had continued improvement of renal function after the eculizumab was initiated, the patient had already improved substantially prior to the therapy.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
These uncertainties were substantially increased prior to their release in the recommended data files of 1987.
Science
Further, designs must be substantially completed prior to start of production.
Science
Gastrointestinal absorption of most chemicals is substantially elevated prior to weaning and many organs, such as kidneys, are underdeveloped, while the physical development of critical organs impacting on the health of the infant throughout life is accelerated (Oskarsson et al. 1998).
The fleet was substantially updated shortly prior to the company's closure.
Wiki
Values for DHT + T hamsters at wk 5 did not differ significantly from preoperative values; T hamsters, in contrast, had substantially more intromissions prior to ejaculation at wk 5 than preoperatively (p<0.05).
Science
Some conditions such as deficiency anemias were substantially increased even prior to the diagnosis of dyspepsia.
Science
Both economic and social affairs policies have increased substantially: from 3% prior to 1970 to 11%and13%3% respectively between 2001 and 2010.
Science
However, 31 of the 33 participants scored <2.5 on the MAL, indicating that they use their paretic hand substantially less than prior to stroke.
Expert writing Tips
Best practice
When using "substantially prior to", ensure the context clearly indicates what event or point in time is being referenced. This helps avoid ambiguity and ensures the reader understands the time relationship.
Common error
Avoid using "substantially prior to" in informal contexts. Simpler alternatives like "well before" or "long before" may be more appropriate for casual writing or conversation.
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "substantially prior to" functions as a prepositional phrase, modifying a verb or noun to indicate a temporal relationship. According to Ludwig AI, it describes that something happens a significant time before another event.
Frequent in
Science
100%
News & Media
0%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "substantially prior to" is a prepositional phrase used to indicate that something occurs a significant amount of time before another event. Ludwig AI confirms its grammatical correctness and usability, primarily in formal and scientific contexts. While effective for establishing temporal relationships, it should be used judiciously in less formal settings, where simpler alternatives might be more appropriate. The phrase is more common in scientific literature, with examples found in various scientific journals.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
significantly before
Emphasizes the notable difference in time, using 'significantly' instead of 'substantially'.
considerably earlier than
Replaces 'substantially' with 'considerably' and 'prior to' with 'earlier than', maintaining the meaning of a notable time difference.
well in advance of
Uses a more idiomatic expression, focusing on being prepared ahead of time.
long before
A simpler and more direct way of expressing a considerable time gap.
appreciably sooner than
Replaces 'substantially' with 'appreciably' and 'prior to' with 'sooner than', both meaning a noticeable difference in time.
noticeably ahead of
Highlights that the time difference is easily observed.
far in advance of
Similar to 'well in advance of' but with a stronger emphasis on the distance in time.
a good while before
An informal way to indicate a considerable amount of time passing beforehand.
markedly earlier than
Emphasizes the clear and distinct difference in time, using 'markedly' instead of 'substantially'.
considerably in advance of
Combines 'considerably' with 'in advance of' to show a significant preparation time.
FAQs
How can I use "substantially prior to" in a sentence?
Use "substantially prior to" to indicate that something happened a significant amount of time before another event. For example, "The data was collected "substantially prior to" the new regulations taking effect."
What does "substantially prior to" mean?
The phrase "substantially prior to" means a considerable amount of time before something else. It indicates a significant temporal gap between two events or points in time.
What are some alternatives to "substantially prior to"?
Some alternatives include "significantly before", "considerably earlier than", or "well in advance of", depending on the specific nuance you want to convey.
Is "substantially prior to" formal or informal?
The phrase "substantially prior to" is generally considered formal. In more casual contexts, simpler alternatives like "long before" or "well before" might be more suitable.
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
4.1/5
Expert rating
Real-world application tested