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
mentally strenuous
Grammar usage guide and real-world examplesUSAGE SUMMARY
"mentally strenuous" is a correct phrase and usable in written English.
You can use it to describe a situation or task that requires a lot of mental effort or concentration. For example: "The students found the math exam to be mentally strenuous."
✓ Grammatically correct
News & Media
Science
Wiki
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
5 human-written examples
The moral of Smith's book is the right one: not that screens are bad and books are good, but that what books do depends on the totality of what they are — their turning pages, their sturdy self-sufficiency, above all the way they invite a child to withdraw from this world into a world alongside ours in an activity at once mentally strenuous and physically still.
News & Media
In this studio, Kink puts their "slaves" through some of the most physically and mentally strenuous porn conceivable.
News & Media
More recently, the Helsinki Health Study (n = 6,243) found that among women, mentally strenuous work and high job control were associated with a healthy diet [ 10].
Science
Studies of work in care for the elderly have shown that nurses experience their work as meaningful but the disadvantages are that it is stressful, physically and mentally strenuous work with low wages.
Science
Do something mentally strenuous.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
He'll be an exhausted sanitation worker who rose before dawn, has driven a massive vehicle on congested streets for many hours, and is at the end of a mentally and physically strenuous shift.
News & Media
Light work was used as a reference for both mentally and physically strenuous work, following previous procedures.
Science
This is one of the most mentally tough and physically strenuous training sequences in all of the United States military.
Wiki
Aandal, Construction Worker Eeswari, a 25 year old mother of 5 children, was forced to carry her children to her workplace and feels extremely physically and mentally stressed due to the strenuous work at construction sites and unsympathetic contractors who wouldn't let her care for her children at the work site.
Science
Mental and physical workload was examined using two single items asking whether the respondents perceived their work as very light, light, strenuous or very strenuous mentally or physically, and dichotomised as heavy or light.
Science
There can be exemptions from fasting for pregnant women, soldiers, the mentally ill, children and people with a strenuous livelihood.
News & Media
Expert writing Tips
Best practice
When describing a task or activity, use "mentally strenuous" to emphasize the high degree of concentration and mental effort required. This is effective in both formal and informal contexts.
Common error
Avoid using "mentally strenuous" when simpler terms like "difficult" or "challenging" suffice. Overusing it in everyday conversation can sound overly formal or pretentious.
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "mentally strenuous" functions as an adjective phrase, modifying a noun to describe something requiring significant mental effort or exertion. As Ludwig AI confirms, it's grammatically correct and usable in written English.
Frequent in
News & Media
40%
Science
40%
Wiki
20%
Less common in
Formal & Business
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "mentally strenuous" is a grammatically sound way to describe tasks or activities that require significant mental effort. Ludwig AI confirms its usability, though its frequency is relatively rare. It is primarily used in news, scientific, and wiki contexts. When writing, remember that while "mentally strenuous" is appropriate for formal and technical descriptions, simpler terms might be better suited for everyday conversations. Consider alternatives such as "intellectually demanding" or "cognitively taxing" for variety.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
intellectually demanding
Replaces "mentally" with "intellectually" focusing on cognitive processes.
cognitively taxing
Uses "cognitively" to emphasize the mental processes involved, and "taxing" to highlight the burden.
mentally challenging
Replaces "strenuous" with "challenging", suggesting a difficult but stimulating task.
brain-intensive
A more informal term emphasizing the heavy use of brainpower.
requiring deep thought
Shifts the focus to the depth of thought required, rather than the effort.
mentally exhausting
Focuses on the draining effect of the mental effort.
intellectually rigorous
Emphasizes the strict standards and precision required.
demanding mental agility
Highlights the need for quick and flexible thinking.
mentally arduous
Uses "arduous" to convey the difficulty and laboriousness.
complex thinking
A more general term referring to the complexity of the thought processes involved.
FAQs
How can I use "mentally strenuous" in a sentence?
You can use "mentally strenuous" to describe tasks or activities that require a lot of mental effort. For example, "The exam was incredibly "mentally strenuous", demanding hours of concentrated focus".
What are some alternatives to "mentally strenuous"?
Depending on the context, you can use alternatives like "intellectually demanding", "cognitively taxing", or "mentally challenging".
Is "mentally strenuous" the same as "physically strenuous"?
No, "mentally strenuous" refers to activities that require significant mental effort, while "physically strenuous" describes activities that demand physical exertion. They are distinct but can sometimes occur together.
When is it appropriate to use "mentally strenuous" instead of "difficult"?
"Mentally strenuous" is more appropriate when you want to emphasize the specific aspect of mental effort and concentration, whereas "difficult" is a more general term for something that is hard to do.
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
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested