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
Previously understood
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "Previously understood" is correct and usable in written English.
It can be used to refer to something that was comprehended or accepted in the past. Example: "The concept was previously understood by the team, but recent developments have changed our perspective."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(20)
previously understood
prior understanding
already understood
previously known
possessed prior understanding
knew beforehand
had already known
was already aware
had anticipated
really understood
actually understood
previously identified
earlier recognized
already established
previously established
currently known
ever known
already known
previously retired
previously rated
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
Some natural variability not previously understood?
News & Media
This suggests that the number of false convictions is higher than previously understood.
News & Media
The Severn Project has annual revenues of £115,000, not £350,000 as previously understood.
News & Media
Genentech said it had previously understood that the F.D.A. would not require such data.
News & Media
So you can have feedbacks that are subtler than what we previously understood.
Academia
Few of us previously understood just how exhaustively the American news media would follow a celebrity story.
News & Media
The location of where the drives were manufactured was not previously understood by the downstream value chain.
News & Media
This calculation seemed to prove that Williams was even more superhuman an athlete than was previously understood.
News & Media
Specialization of Ur. sapphirina on annelid hosts demonstrates that the host breadth of mosquitoes is substantially broader than previously understood.
Science & Research
Friday's report will show that the interaction of human and natural influences is more complicated than was previously understood.
News & Media
But the sting of social rejection may be more like the ouch! of physical pain than previously understood.
News & Media
Expert writing Tips
Best practice
Use "Previously understood" to clearly indicate a change in knowledge or awareness, highlighting the difference between past and present understanding. This is especially useful in academic and scientific writing where evolving knowledge is common.
Common error
Avoid using "Previously understood" when referring to something that is still currently understood. The phrase implies a shift in understanding, so it's inappropriate if the initial understanding remains valid.
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "previously understood" functions as an adverbial modifier, indicating the time frame of a past understanding that has since changed. As Ludwig AI states, the phrase is correct and usable in written English, serving to highlight shifts in knowledge or perception.
Frequent in
News & Media
54%
Science
22%
Academia
15%
Less common in
Formal & Business
5%
Encyclopedias
2%
Reference
2%
Ludwig's WRAP-UP
In summary, "previously understood" is a grammatically sound phrase used to highlight shifts in knowledge and perception. As Ludwig AI confirms, it is correct and usable in various contexts. With a neutral register, it commonly appears in News & Media, Science, and Academia. It's crucial to use this phrase when there's a clear change in understanding, avoiding misuse when the initial understanding remains valid. Related phrases include "prior understanding" and "formerly known". This analysis, combined with insights from Ludwig AI, ensures effective usage of "previously understood" in writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Prior understanding
Slightly more formal alternative.
What we knew before
Highlights a prior state of knowledge from a collective perspective.
What was once thought
Emphasizes a past belief or understanding.
Formerly known
Focuses on a change in identity or status.
Past comprehension
Highlights the act of understanding in the past.
As it was known before
Highlights a past state of knowledge.
Earlier conception
Refers to a prior idea or notion.
Initial perception
Focuses on the first impression or view.
Original interpretation
Emphasizes a past interpretation or explanation.
Hitherto understood
More formal and less common alternative, meaning "up to this point".
FAQs
How can I use "previously understood" in a sentence?
"Previously understood" is used to indicate that something was known or believed in the past, but is now known or believed to be different. For example, "The risks were greater than "previously understood"".
What are some alternatives to "previously understood"?
Alternatives include "formerly known", "prior understanding", or "what was once thought". The best choice depends on the specific context.
Is it correct to say "than was previously understood" or "than previously understood"?
Both are grammatically correct, but "than was "previously understood"" is more formal and often preferred in academic writing. "Than "previously understood"" is more concise and common in general writing.
What is the difference between "previously understood" and "misunderstood"?
"Previously understood" means something was believed to be true but is now known to be different, while "misunderstood" means something was incorrectly understood from the beginning. The first implies a change in knowledge, the second an initial error.
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
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested