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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
render unusable
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "render unusable" is grammatically correct and can be used in written English.
This phrase means to make something unable to be used or operate properly. Example: The heavy rain rendered the roads unusable, forcing commuters to find alternative routes to work.
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(7)
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
4 human-written examples
Outside experts cautioned that disabling the affected Windows XP features threatens to render unusable an entire category of high-tech devices about to go on the market, such as certain computer printers that are easier to set up.
News & Media
A "defensive measure" is something applied to an information system (or to information on that system) that "detects, prevents, or mitigates a known or suspected cybersecurity threat or security vulnerability," but measures that destroy, render unusable, provide unauthorized access to, or substantially harm third-party information systems are expressly excluded from the definition.
Academia
It would also render unusable the Aras River Valley, Armenia's premier agricultural area, where Metasamor is situated.
News & Media
Under existing building rules, a large earthquake could render unusable so many housing units that it would trigger a mass exodus much like New Orleans suffered after Hurricane Katrina, Porter wrote in a report.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
Instead, these areas have been rendered unusable by the addition of a decorative railing.
News & Media
Space itself could be polluted for decades to come, rendered unusable.
News & Media
The facilities where Kurosu trains were rendered unusable by the earthquake.
News & Media
Several high power transistors were rendered unusable after a couple seconds of exposure in these circuits.
Academia
Pollution, as much as skimpy supply, has been blamed for the immediate crisis because much water has been rendered unusable.
News & Media
Thousands of villages have been destroyed, with up to 90% of clinics and schools in some districts rendered unusable.
News & Media
The elevator cars, which were rendered unusable when the elevator shafts flooded, may have to be redesigned.
News & Media
Expert writing Tips
Best practice
When writing about technical failures or security vulnerabilities, use "render unusable" to convey that a system or device has been made non-functional due to a specific action or event.
Common error
Avoid using "render unusable" in casual conversations or informal writing, as it can sound overly formal or stilted. Opt for simpler alternatives like "break" or "make unusable" in such situations.
Source & Trust
85%
Authority and reliability
4.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "render unusable" functions as a verb phrase typically used to describe the action of causing something to become non-functional or inoperative. As indicated by Ludwig, this phrase is grammatically correct and can be used in written English.
Frequent in
News & Media
40%
Academia
30%
Science
30%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "render unusable" is a grammatically sound verb phrase that effectively communicates the act of making something non-functional. As confirmed by Ludwig, this term is appropriate for formal contexts like news reports, academic papers, and technical documentation. While synonyms exist, such as "make inoperative" or "disable", "render unusable" carries a unique connotation suitable for scenarios where an action or event has significantly compromised the usability of an object or system. Its usage leans towards neutral to formal registers, making it less common in casual conversation. Despite its relatively low frequency in general text, the phrase maintains a consistent presence across reputable sources, especially within news, academia, and science.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
make inoperative
Focuses on the action of causing something to stop functioning.
disable
Implies preventing something from being used, often temporarily.
incapacitate
Suggests a severe reduction in capability or effectiveness.
put out of action
Emphasizes the result of being unable to function or operate.
invalidate
Means to nullify or make something void or without effect.
destroy functionality
Highlights the elimination of a function or feature.
make ineffective
Centers on diminishing the desired effect or outcome.
ruin usability
Focuses on the destruction or damaging of user-friendliness.
damage beyond repair
Highlights the degree of damage and the inability to fix something.
impair function
Implies a weakening or diminishing of the normal function.
FAQs
How can I use "render unusable" in a sentence?
You can use "render unusable" to describe the state of something that has been damaged or altered in a way that prevents it from being used. For instance, "The flood "rendered unusable" many of the town's roads."
What's a more straightforward way to say "render unusable"?
Instead of "render unusable", consider using phrases like "make unusable", "disable", or "incapacitate" depending on the specific meaning you wish to convey.
Is "render unusable" appropriate for technical writing?
Yes, "render unusable" is perfectly suitable for technical writing when describing a specific event or action that makes equipment, software, or systems unable to function as intended.
Which is more appropriate: "rendered unusable" or "made unusable"?
Both "rendered unusable" and "made unusable" are grammatically correct, but "rendered unusable" carries a slightly more formal tone, making it ideal for technical or academic contexts. "Made unusable" is suitable in more casual settings.
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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
85%
Authority and reliability
4.2/5
Expert rating
Real-world application tested