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
preserve unchanged
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "preserve unchanged" is correct and usable in written English.
It can be used when discussing the importance of maintaining the original state or condition of something without alterations. Example: "In order to maintain the integrity of the historical document, we must preserve unchanged all its original features."
✓ Grammatically correct
Academia
Science
News & Media
Encyclopedias
Wiki
Alternative expressions(5)
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
A virtuous people make just laws, and good laws tend to preserve unchanged a virtuous people.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Kyphotic angulation: Lordosis was preserved unchanged in almost all patients.
"If folk is the music of the people then it's surely wrong to treat it as 'high art' that should be preserved unchanged.
News & Media
It has been preserved unchanged since he was held prisoner there for 12 days in 1943 – right down to the same elegant wooden furniture, the same bed and even the same, now pretty soggy, mattress.
News & Media
Siegfried made few changes to the production traditions set by Wagner and Cosima; Spotts records that "whatever had been laid down by his parents was preserved unchanged out of a sense of strict filial duty".
Wiki
Each of these randomly generated "outgroups" was successively used as the root for an MP analysis sampling our 18 chrysochlorids, preserving unchanged their GHR, morphology, and indel characters.
Science
Although minor changes are to be expected, the majority of the pathways present in the RNA world should have been preserved unchanged even in the later evolutionary stages.
Science
"The City of New York, because of its unadorned admiration for the design, has decided that the owners of the building must preserve it unchanged for the benefit of sightseeing New Yorkers and tourists".
News & Media
The museum, now owned by the city of New York, is an object of dispute between those who would buy and redesign it and those who would preserve it unchanged.
News & Media
We can preserve them unchanged and untouched for those now in or near retirement, but we must fashion a new, affordable safety net so future Americans are protected, too.
News & Media
We can preserve them unchanged and untouched for those now in or near retirement, but we must fashion a new, affordable safety net so future Americans are protected, too....The mortal enemies of Social Security and Medicare are those who, in contempt of the plain arithmetic, continue to mislead Americans that we should change nothing.
News & Media
Expert writing Tips
Best practice
When using "preserve unchanged", ensure it's clear what specific aspects are being maintained to avoid ambiguity. For instance, specify "preserve unchanged the original design" or "preserve unchanged the historical accuracy".
Common error
Avoid using "preserve unchanged" in informal writing; opt for simpler alternatives like "keep as is" or "leave alone" to maintain a natural tone. Although grammatically correct, this phrase can sound stilted in everyday conversation.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "preserve unchanged" functions as a verb phrase where 'preserve' acts as a transitive verb and 'unchanged' modifies the verb by indicating the state in which something should be kept. According to Ludwig, the phrase is grammatically correct.
Frequent in
Science
38%
News & Media
28%
Academia
13%
Less common in
Encyclopedias
8%
Wiki
6%
Formal & Business
0%
Ludwig's WRAP-UP
The phrase "preserve unchanged" is a grammatically sound verb phrase used to describe maintaining something in its original state, according to Ludwig. While infrequent, it finds its primary contexts in scientific, academic, and news-related writing, reflecting a formal register. When aiming for clarity, specify which aspects are being maintained. Consider simpler alternatives like ""keep as is"" or ""maintain as is"" for less formal settings. Key resources such as The New York Times and The Guardian exemplify authoritative usage.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
keep as is
Emphasizes maintaining the current state without any modifications.
maintain as is
Similar to 'keep as is', it stresses the continuation of the existing condition.
retain intact
Highlights preserving something whole and undamaged.
keep intact
Focuses on maintaining the integrity and completeness of something.
maintain without alteration
Explicitly states that no changes are made.
retain without modification
Similar to 'maintain without alteration', stressing the absence of changes.
preserve in its original state
Highlights the importance of maintaining the initial condition.
maintain its initial form
Focuses on preserving the original shape or structure.
leave untouched
Suggests not making any changes at all, letting something remain as it is.
hold constant
Implies actively keeping something at a fixed value or state.
FAQs
How can I use "preserve unchanged" in a sentence?
You can use "preserve unchanged" to describe maintaining something in its original condition without alteration. For example, "The museum aims to preserve unchanged the artist's studio".
What are some alternatives to "preserve unchanged"?
Alternatives include "keep as is", "maintain as is", or "retain intact", depending on the specific context.
Is "preserve unchanged" grammatically correct?
Yes, "preserve unchanged" is grammatically correct, although it may sound somewhat formal. Ludwig confirms its grammatical validity.
What is the difference between "preserve unchanged" and "maintain as is"?
"Preserve unchanged" often implies a more deliberate or official effort to maintain something, while ""maintain as is"" is a more general term for keeping something in its current condition.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested