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
is unusable
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is unusable" is correct and usable in written English.
It can be used to describe something that cannot be used or is not functional. Example: "The software update has caused the application to crash, and now it is unusable."
✓ Grammatically correct
News & Media
Science
Academia
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
60 human-written examples
The resources needed will be substantial but small compared with the $100bn£62bnbn; €76bn) spent on medical research annually, much of which is wasted because it is unusable or unused.
Science
Except that water is unusable.
News & Media
The whole area is unusable.
News & Media
In other words, it is unusable.
News & Media
Machine is unusable for the moment.
Academia
"The building is unusable," said Alan M. Feldman, MGM's senior vice president for public affairs.
News & Media
The airport in the northern part of the island is unusable in the rain.
News & Media
Otherwise, Ms. Thompson said, the sanctuary is unusable from June to September.
News & Media
Now the school is unusable, its giant metal flower decorations lying on their sides.
News & Media
In practice, the quality and delays are so horrific that the feature is unusable.
News & Media
But pledges to dismantle Punggye-ri may be empty if the site is unusable anyway.
News & Media
Expert writing Tips
Best practice
When describing the state of an object or system, ensure the context clearly explains why the object "is unusable". Providing specific details enhances clarity.
Common error
Avoid using "is unusable" without providing context. For example, instead of just saying "The machine is unusable", specify why: "The machine is unusable due to a critical system failure."
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is unusable" functions as a predicate adjective, describing the state or condition of a noun. It indicates that something is not in a condition to be used, often due to damage, malfunction, or incompatibility. As Ludwig AI confirms, the phrase is commonly used and grammatically correct.
Frequent in
News & Media
40%
Science
30%
Academia
15%
Less common in
Formal & Business
5%
Encyclopedias
5%
Wiki
5%
Ludwig's WRAP-UP
In summary, the phrase "is unusable" is a grammatically sound and frequently used expression to describe something that cannot be used. Ludwig AI confirms the correctness and usability of the phrase across various contexts. It is prevalent in News & Media, Science, and Academic sources, indicating its versatility. For more precise writing, consider providing context to why something is unusable.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
cannot be used
Focuses on the inability to use something, emphasizing a lack of permission or capability.
is not functional
Highlights the lack of proper operation or functionality.
is out of order
Suggests a temporary state of being non-operational, often implying that it will be fixed.
is inoperative
A more formal term for being not in working condition.
is non-operational
Similar to "is inoperative" but perhaps implying a more significant or lasting issue.
is unserviceable
Indicates that something is beyond repair or unfit for use.
is defective
Emphasizes a flaw or imperfection that prevents proper use.
is broken
A simple and direct way of saying something is not working.
is kaput
An informal term suggesting complete and irreversible failure.
is defunct
Implies that something is no longer in effect or no longer exists.
FAQs
How can I use "is unusable" in a sentence?
Use "is unusable" to describe something that cannot be used. For example: "The software update caused the application to crash, so now it "is unusable".
What can I say instead of "is unusable"?
You can use alternatives like "cannot be used", "is not functional", or "is out of order" depending on the context.
Which is correct, "is unusable" or "cannot be used"?
Both "is unusable" and "cannot be used" are grammatically correct, but "is unusable" directly describes the state, while "cannot be used" describes the action that is impossible. The choice depends on the desired emphasis.
What's the difference between "is unusable" and "is broken"?
"Is broken" suggests physical damage or malfunction, whereas "is unusable" is broader, indicating any reason something can't be used, including being outdated or incompatible.
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested