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
reaching a trough of
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "reaching a trough of" is correct and usable in written English.
It is typically used to describe a situation in which something has been declining and is now at its lowest possible point. For example, "The stock market had been steadily dropping for months until it reached a trough of just over 4,000 points."
✓ Grammatically correct
Science
News & Media
Alternative expressions(5)
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
2 human-written examples
After then reaching a trough of 1.1% in early 2011, consumer prices would rise again to exceed 2% in 2012.
News & Media
Of 13 patients screened one patient, a 46 year old man with PAI and no other comorbidities, had nocturnal hypoglycaemia of approximately one hour duration reaching a trough of 2.6 mmol/L.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
The percentage of HCS was high during the night and started to decline from ~0500 h reaching a trough in HCS at the time of vaccination (0930 h).
Science
In Nevada, the caseload has grown 34percentt since reaching a trough last year.
News & Media
Over all, inflation was projected at 0.4percentt in the euro area in 2009, reaching a trough in the third quarter.
News & Media
To reach a trough level of around 8 g/L he required a high dosage of IVIG of 1.2 g/kg [ 5].
First, the current deep and protracted U-shaped recession in the U.S. and other advanced economies will continue through all of 2009, rather than reach a trough in the middle of this year as expected by the optimists.
News & Media
Stryker : The medical device and implant manufacturer has seen its shares in need of more than one of its own implants recently, having reached a trough at $30.96.
News & Media
Disposals delivering the lion's share of refinancing needs would be the key factor dictating whether we have reached a trough in the stock.
News & Media
Goldman Sachs, for instance, reckons that global economic activity will reach a trough in the present quarter.
News & Media
New figures suggest that the euro area economies reached a trough late last year.
News & Media
Expert writing Tips
Best practice
When describing a trend or cycle, use "reaching a trough of" to indicate the lowest point before a potential recovery or increase.
Common error
Avoid using "reaching a trough of" when describing a generally positive trend; this phrase is most appropriate for negative or cyclical patterns hitting a low point.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "reaching a trough of" functions as a verbal phrase, specifically acting as a descriptor indicating the lowest point achieved in a fluctuating process or trend. Ludwig shows its use in both scientific and economic contexts.
Frequent in
Science
50%
News & Media
50%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "reaching a trough of" effectively conveys the idea of attaining the lowest point in a cycle or trend. As Ludwig confirms, it's grammatically sound and suitable for analytical or descriptive contexts, especially in science and news media. While not overly common, it provides a specific and precise way to describe a bottoming-out scenario, often implying the potential for future recovery. The related phrases offer alternatives for emphasizing different aspects of this low point, whether it's the act of hitting bottom or the anticipation of a rise.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
hitting a low point of
Focuses on the achievement of the lowest level, similar to reaching a trough.
bottoming out at
Emphasizes the action of hitting the lowest possible point and stabilizing there.
declining to a nadir of
Uses more formal language to describe reaching the lowest point.
descending to a minimum of
Focuses on the decrease leading to the lowest point.
arriving at the lowest level of
Highlights the arrival or attainment of the minimum level.
touching the lowest point of
Emphasizes briefly reaching the minimum before a potential rise.
sinking to a bottom of
Emphasizes the process of sinking or decline.
plunging to a low of
Suggests a rapid and significant drop to the lowest point.
falling to a valley of
Metaphorically uses "valley" to represent the lowest point in a graphical sense.
dropping to the floor of
Implies a complete and possibly irreversible descent to the lowest level.
FAQs
How can I use "reaching a trough of" in a sentence?
You can use "reaching a trough of" to describe the lowest point in a cycle, such as "The economy is expected to recover after "reaching a trough of" unemployment".
What are some alternatives to "reaching a trough of"?
Alternatives include phrases like "hitting a low point of", "bottoming out at", or "declining to a nadir of", each emphasizing the achievement of a minimum level.
Is it appropriate to use "reaching a trough of" in formal writing?
Yes, "reaching a trough of" is appropriate for formal writing, especially when describing trends in economics, science, or other analytical contexts. However, consider the specific tone and audience to ensure it fits the overall style.
What does "reaching a trough of" imply about future trends?
"Reaching a trough of" suggests that a decline has reached its lowest point and that a potential increase or recovery may follow. It doesn't guarantee an upward trend, but implies the downward trend has likely stopped.
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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested