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
greatly deteriorated
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "greatly deteriorated" is correct and usable in written English.
It can be used to describe a significant decline in quality, condition, or performance of something over time. Example: "The condition of the old building has greatly deteriorated since it was last inspected."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(16)
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
13 human-written examples
The situation on the border [has] greatly deteriorated during the last 18 months".
News & Media
"The economics of our business have greatly deteriorated," said Selig, who was acting commissioner for nearly six years before he became commissioner.
News & Media
For the last few years, she has used a motorized wheelchair most of the time, and her eyesight has greatly deteriorated.
News & Media
Japanese productions during the 19th century, in common with those in most other parts of the world, greatly deteriorated in taste.
Encyclopedias
Whereas, the ductility ratio was greatly deteriorated.
Science
However, the noise immunity of the CC will be greatly deteriorated by shorting the length to N/2.
Human-verified similar examples from authoritative sources
Similar Expressions
44 human-written examples
"It's clear that the economic situation is going to greatly deteriorate.
News & Media
It would, however, throw this plan out if the economy greatly deteriorates, just as George Osborne, the Conservative chancellor of the exchequer, quietly junked his deficit-reduction "Plan A" when the euro zone caught fire.
News & Media
In an interview, he praised Mr. Biden as being cordial, saying the vice president asked him not to grant asylum and explained that "it could greatly deteriorate relations, but without any kind of threat, just presenting the importance that the Snowden case has for them".
News & Media
First, the detection errors of spectrum sensing greatly deteriorates the performance of ARA algorithm [4, 5].
Improper handling of animal manure generated from concentrated swine operations greatly deteriorates water ecosystems.
Science
Expert writing Tips
Best practice
When using "greatly deteriorated", ensure that the context clearly indicates what specific aspect has declined, such as "the patient's health greatly deteriorated" or "the building's condition greatly deteriorated."
Common error
Avoid using "greatly deteriorated" without specifying what is deteriorating. For example, instead of saying "things have greatly deteriorated", specify "the economic situation has greatly deteriorated" to provide clarity.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "greatly deteriorated" functions as a descriptive expression, indicating a significant decline in the condition or quality of something. Ludwig confirms its usability in written English.
Frequent in
Science
30%
News & Media
40%
Encyclopedias
10%
Less common in
Formal & Business
10%
Wiki
10%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "greatly deteriorated" is a grammatically correct and usable expression that signifies a substantial decline in condition or quality. Ludwig AI confirms its validity. While the phrase sees use across various contexts, it is particularly common in news, science and encyclopedic sources. When using "greatly deteriorated", be specific about what is declining to ensure clarity. Alternatives such as "significantly declined" or "markedly worsened" can be used for variety. Understanding the scope and context is critical for effective communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
significantly declined
Replaces "deteriorated" with "declined" and "greatly" with "significantly", emphasizing a notable decrease.
markedly worsened
Substitutes "deteriorated" with "worsened" and "greatly" with "markedly", indicating a clear turn for the worse.
considerably degraded
Replaces "deteriorated" with "degraded" and "greatly" with "considerably", focusing on a reduction in quality or condition.
severely declined
Emphasizes the severity of the decline using "severely" instead of "greatly".
substantially impaired
Replaces "deteriorated" with "impaired" and "greatly" with "substantially", suggesting a significant reduction in function or ability.
notably declined
Uses "notably" to indicate a decline that is worth paying attention to.
sharply declined
Uses "sharply" to refer to an abrupt or steep decline.
heavily affected
Indicates a significant negative impact rather than a gradual decline.
critically declined
Implies a decline that has reached a critical or dangerous stage.
gone downhill rapidly
An idiomatic expression indicating a quick and significant decline.
FAQs
What does "greatly deteriorated" mean?
The phrase "greatly deteriorated" means that something has significantly declined in quality, condition, or performance. It implies a substantial worsening over time.
What can I say instead of "greatly deteriorated"?
You can use alternatives like "significantly declined", "markedly worsened", or "considerably degraded" depending on the context.
How do I use "greatly deteriorated" in a sentence?
Use "greatly deteriorated" to describe a state or condition that has worsened considerably. For example, "The infrastructure of the city has "greatly deteriorated" due to lack of investment."
Which is the correct usage: "The situation greatly deteriorated" or "The situation has greatly deteriorated"?
Both are correct, but "The situation has "greatly deteriorated"" is more common and grammatically complete, as it uses the present perfect tense to indicate a change over time. "The situation greatly deteriorated" implies a past event.
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