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 instructing someone to keep something in its current state without any modifications. Example: "Please ensure that the original document is preserved unchanged for future reference."
✓ Grammatically correct
Science
News & Media
Academia
Alternative expressions(4)
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 instructing someone to keep something in its existing form, use "Preserve unchanged" to clearly communicate the need to avoid any modifications.
Common error
Avoid adding unnecessary enhancements or adjustments to items intended to be preserved. Focus on protecting them from degradation, rather than altering their original state.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "preserve unchanged" functions as a directive, instructing the recipient to maintain something in its existing condition without any modifications. It combines a verb of action ("preserve") with an adjective describing the desired state (unchanged). Ludwig confirms its usability in written English.
Frequent in
Science
38%
News & Media
32%
Academia
15%
Less common in
Wiki
7%
Encyclopedias
4%
Formal & Business
4%
Ludwig's WRAP-UP
The phrase "preserve unchanged" is a grammatically sound and functionally versatile expression that instructs the maintenance of something in its original state. Ludwig AI highlights its usability in formal contexts and emphasizes the need to avoid modifications when using this phrase. Predominantly featured in Science, News & Media, and Academia, it serves to ensure the integrity and originality of objects, documents, or conditions. Consider alternatives like "keep unaltered" or "maintain intact", but always prioritize clarity and the specific needs of your message.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Keep unaltered
Focuses on maintaining something without any alteration.
Maintain intact
Emphasizes the wholeness and undamaged condition.
Retain its original form
Highlights the importance of keeping the original shape or structure.
Leave as is
Offers a more casual way to express keeping something in its current state.
Hold constant
Suggests maintaining a steady state without change.
Keep in its existing condition
Clearly indicates maintaining the present state.
Conserve without modification
Implies preserving something carefully without changing it.
Protect from change
Highlights the act of safeguarding against alterations.
Save as it is
Focuses on saving something in its current form.
Uphold without variation
Emphasizes the act of maintaining something to a specific standard, without deviations.
FAQs
How can I use "Preserve unchanged" in a sentence?
You can use "Preserve unchanged" to instruct someone to keep something in its original state. For example, "Please "preserve unchanged" the original document for future reference."
What are some alternatives to "Preserve unchanged"?
Alternatives include "keep unaltered", "maintain intact", or "leave as is" depending on the context.
What does it mean to "Preserve unchanged"?
"Preserve unchanged" means to maintain something in its current state without any modifications or alterations. It emphasizes keeping the original form or condition.
Is it better to say "Preserve unchanged" or "Keep original"?
Both phrases are valid, but "Preserve unchanged" emphasizes the act of maintaining something without alterations, while "Keep original" focuses on retaining the initial version or state. The best choice depends on the specific context.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested