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
extremely arduous
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "extremely arduous" is grammatically correct and can be used in written English.
It means something is extremely difficult or strenuous. Here is an example sentence: "The hiker faced an extremely arduous climb up the steep mountain trail."
✓ Grammatically correct
Science
News & Media
Academia
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
22 human-written examples
However, storing large amounts of knowledge into a knowledge base is extremely arduous.
This has been an extremely arduous negotiation, mostly because it became extraordinarily detailed.
Academia
Nowadays mitosis counting is mainly performed by pathologists manually, which is extremely arduous and time-consuming.
Science
Auto top-up rigs in the oil and gas sector perform a vital function keeping pumping solutions cool and lubricated in sometimes extremely arduous environments.
Science
"Deepening reform of the income distribution system is an extremely arduous and complex task of systemic engineering," the new plan says.
News & Media
But that assistance, she said, was only for the period when travel into Lower Manhattan was extremely arduous, which it no longer is.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
38 human-written examples
"They are working extremely hard, as they have been for the past couple of days, in really arduous conditions in heat and smoke," he said.
News & Media
"This has been an extremely long and arduous budget process," Mr. Rowland, a Republican, said tonight after lawmakers finished up an unusual Saturday session that lasted until midnight.
News & Media
The goal was to "lock in" customers of a company's proprietary software and hardware so that switching to another supplier and starting over would be extremely costly and arduous.
News & Media
Until now, researching parcels for redevelopment has been done manually, which is an extremely slow and arduous task.
News & Media
At the same time, the emotional growth I've done has been extremely confronting and arduous.
News & Media
Expert writing Tips
Best practice
When describing a task or journey, use "extremely arduous" to convey the immense difficulty and effort required. This will effectively communicate the scale of the challenge to your reader.
Common error
While "extremely arduous" is a valid phrase, avoid using it in everyday conversation or informal writing. Opt for simpler alternatives like "very hard" or "really tough" to maintain a natural tone.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "extremely arduous" functions as an adjectival modifier, intensifying the degree of difficulty associated with a noun. As Ludwig examples demonstrate, it's used to emphasize that a task, journey, or process is not just difficult, but exceptionally so.
Frequent in
News & Media
32%
Science
32%
Academia
16%
Less common in
Wiki
16%
Formal & Business
4%
Reference
0%
Ludwig's WRAP-UP
In summary, "extremely arduous" is a grammatically correct and widely used phrase that effectively communicates a high degree of difficulty. As Ludwig AI confirms, it functions as an adjectival modifier, typically employed in formal and scientific contexts to emphasize the intensity of a task or situation. While common in news, media, scientific, and academic writing, it's essential to consider the context and choose simpler alternatives for informal settings. Remember to leverage alternative phrases like "exceptionally challenging" or "incredibly demanding" for variety and impact, ensuring your language remains both precise and appropriate.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
exceptionally challenging
Emphasizes the level of difficulty and the demands on one's abilities.
incredibly demanding
Highlights the high level of requirements and expectations involved.
terribly taxing
Focuses on the exhausting and draining nature of the task.
seriously burdensome
Stresses the heavy weight and difficulty imposed by the task.
remarkably grueling
Highlights the exhausting and physically demanding nature of the task.
prohibitively difficult
Indicates that the level of difficulty might prevent success.
exceedingly toilsome
Stresses the laboriousness and effort involved in the task.
unusually laborious
Focuses on the extensive effort and hard work required.
highly strenuous
Emphasizes the energy and effort that the task requires.
intensely rigorous
Indicates the strictness and high standards involved in the process.
FAQs
How can I use "extremely arduous" in a sentence?
You can use "extremely arduous" to describe tasks or situations that are very difficult and require a lot of effort. For example: "The journey through the desert was an extremely arduous undertaking.".
What can I say instead of "extremely arduous"?
You can use alternatives like "exceptionally challenging", "incredibly demanding", or "terribly taxing" depending on the specific context.
Is "extremely arduous" formal or informal?
"Extremely arduous" leans towards the formal side. It is suitable for academic papers, reports, and other professional contexts where precise and impactful language is valued. In everyday conversation, simpler alternatives may be more appropriate.
What makes a task "extremely arduous"?
An "extremely arduous" task is characterized by its high level of difficulty, requiring significant effort, endurance, and persistence. It often involves overcoming numerous obstacles and enduring considerable strain, both physically and mentally.
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