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
closed and isolated
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "closed and isolated" is correct and usable in written English.
It can be used to describe a situation, environment, or system that is not open to outside influence or interaction. Example: "The research facility was closed and isolated, ensuring that no external factors could affect the experiment."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(2)
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
8 human-written examples
"We just come off looking more closed and isolated".
News & Media
"Britain voted for independence, it didn't vote for isolation and so we have a choice: are we going to choose to build an open, global-facing economy, or one that's closed and isolated?
News & Media
"The interior space of stadiums is generally closed and isolated from its surroundings," he told me in 2009, when I wrote about the building for Domus.
News & Media
Glazunov later wrote that while the nationalists' circle "was no longer so ideologically closed and isolated as it had been earlier", they "did not consider P.I.
Wiki
A saturated fired-clay brick sample which was closed and isolated on all sides except for the front surface was heated with a halogen lamp of variable intensity.
Science
"The dance world, particularly ballet, is very closed and isolated," Ms. Sloan said.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
Secular equations for the half-space in closed form and isolated mathematical conditions in completely separate terms are derived.
The secular equations for stress free, generalized piezothermoelastic half-space in closed form and isolated mathematical conditions are derived.
Secular equations for the plate in closed form and isolated mathematical conditions for symmetric and antisymmetric wave mode propagation in completely separate terms are derived.
Secular equations for the plate in closed form and isolated mathematical conditions for symmetric and antisymmetric wave modes in completely separate terms are derived.
After deriving secular equations in closed form and isolated mathematical conditions, the effect of rotation on dispersion curves and attenuation profiles is studied.
Expert writing Tips
Best practice
When using "closed and isolated" to describe systems or environments, ensure the context clearly indicates the type of closure and isolation being referred to (e.g., physical, ideological, or informational).
Common error
Avoid using "closed and isolated" without specifying the aspect of isolation. For example, instead of saying "The community was closed and isolated", specify "The community was closed and isolated ideologically" to provide clarity.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "closed and isolated" functions as a descriptive adjective phrase, typically modifying a noun to indicate a lack of openness and connection. Ludwig AI confirms its correctness and usability.
Frequent in
Science
30%
News & Media
25%
Encyclopedias
15%
Less common in
Wiki
10%
Formal & Business
10%
Reference
10%
Ludwig's WRAP-UP
The phrase "closed and isolated" is a commonly used and grammatically correct descriptive phrase, indicating a state of separation or lack of connection. As Ludwig AI confirms, it is applicable across various contexts, including scientific, news-related, and general discussions. The phrase's strength lies in its ability to convey a sense of being shut off, whether physically, ideologically, or systematically. While alternatives like "secluded and detached" or "shut off and alone" exist, "closed and isolated" provides a direct and widely understood description of this state. The key is to ensure the context clarifies the specific aspect of closure and isolation being described to avoid overgeneralization.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
isolated and alone
Similar meaning but emphasizes the feeling of aloneness.
secluded and detached
Emphasizes physical separation and emotional distance.
shut off and alone
Highlights the lack of connection and solitude.
inaccessible and remote
Focuses on the difficulty of reaching or interacting with something.
cut off and separated
Implies a deliberate act of disconnecting.
confined and segregated
Suggests restriction and division from a larger group.
insulated and protected
Highlights the shielding from external influences.
withdrawn and reclusive
Describes a deliberate choice to avoid social interaction.
unreachable and disconnected
Focuses on the inability to establish communication or contact.
hermetic and sealed
Stresses the complete closure and impermeability.
FAQs
How can I use "closed and isolated" in a sentence?
You can use "closed and isolated" to describe environments, systems, or even ideologies. For example: "The research facility was "closed and isolated", ensuring no external factors could affect the experiment."
What are some alternatives to "closed and isolated"?
Alternatives include "secluded and detached", "shut off and alone", or "inaccessible and remote", depending on the specific context.
Is it redundant to say "closed and isolated"?
While "closed" and "isolated" have overlapping meanings, using them together can emphasize the thoroughness of the separation or lack of external influence. The degree of redundancy depends on the specific context.
Which is correct, "closed and isolated" or "open and connected"?
Both phrases are correct, but they represent opposite states. "Closed and isolated" describes a state of being shut off, while "open and connected" describes a state of being accessible and interactive. The choice depends on the situation you're describing.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested