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
not set in stone
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'not set in stone' is a correct and usable phrase in written English.
It is usually used to express that something isn't certain and can be changed. For example, "Our plans for tomorrow may change - they are not set in stone."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Wiki
Alternative expressions(20)
is equivalent to
in the wishes of
rapidly thereafter
in such a matter
in the absence of a more suitable term
for the immediate future
Very soon
somewhere later
among others
one week before
in the next weeks
during the previous years
not yet completed
in accordance with direction from
a couple of books before
in two days
if not soon
as excellent as
Eventually
in the second time
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
But standards are not set in stone.
News & Media
And "Kyoto" is not set in stone.
News & Media
"I'm not set in stone.
News & Media
But this is not set in stone.
News & Media
Income limits are not set in stone either.
News & Media
Even that rule is not set in stone.
News & Media
Anti-dumping duties are not set in stone.
News & Media
Of course, plans are not set in stone.
Encyclopedias
The light and color vary; it's not set in stone".
News & Media
America's successful areas are not set in stone.
News & Media
But that plan was apparently not set in stone.
News & Media
Expert writing Tips
Best practice
Use "not set in stone" to indicate that plans, rules, or ideas are subject to change or open for discussion. This phrase is particularly useful in contexts where flexibility is important.
Common error
Avoid using "not set in stone" to suggest complete uncertainty or chaos. It implies flexibility within a framework, not a total lack of structure. If something is completely uncertain, use phrases like "up in the air" or "undecided" instead.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "not set in stone" functions as an adjective phrase, modifying a noun or idea to indicate that it is not fixed or unchangeable. As Ludwig AI explains, it suggests that something is flexible and open to modification.
Frequent in
News & Media
70%
Science
10%
Formal & Business
8%
Less common in
Encyclopedias
4%
Wiki
4%
Academia
2%
Ludwig's WRAP-UP
In summary, the phrase "not set in stone" is a versatile expression used to indicate that something is flexible and subject to change. As confirmed by Ludwig AI, it is grammatically sound and widely used across various contexts, from news and media to scientific discussions. Alternatives like "subject to change" or "flexible" offer similar meanings. When using the phrase, ensure you're conveying flexibility within a framework, rather than complete uncertainty. By understanding its nuances and contexts, you can effectively communicate the possibility of change while maintaining clarity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
flexible
Emphasizes the capacity to adapt to different circumstances.
subject to change
Implies that something is not fixed and can be altered.
open to modification
States that something is receptive to being changed.
not yet finalized
Indicates that the final version has not been determined.
not definite
Indicates uncertainty or lack of finality.
liable to be changed
Highlights the probability of alteration.
up for grabs
Suggests that something is still available and not yet decided.
in flux
Describes something that is constantly changing.
malleable
Highlights the ability to be shaped or influenced.
under consideration
Suggests that something is still being evaluated and is not final.
FAQs
How can I use "not set in stone" in a sentence?
You can use "not set in stone" to indicate that something is flexible and subject to change. For example, "The deadline is "subject to change", it's "not set in stone".
What can I say instead of "not set in stone"?
Alternatives to "not set in stone" include "subject to change", "flexible", or "open to modification".
Is it better to say "not set in stone" or "not written in stone"?
Both "not set in stone" and "not written in stone" are acceptable, but "not set in stone" is more common and widely recognized. "Not written in stone" might sound slightly more formal.
When is it appropriate to use the phrase "not set in stone"?
Use "not set in stone" when you want to convey that a plan, decision, or rule is not final and can be altered or adjusted based on new information or circumstances. It's ideal when communicating the possibility of change without implying complete uncertainty.
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
4.5/5
Expert rating
Real-world application tested