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
difficult activities
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "difficult activities" is correct and usable in written English. You can use it to describe tasks or actions that require significant effort, skill, or concentration. For example, "Climbing a mountain is one of the most difficult activities I've ever attempted." Alternative expressions include "challenging tasks" and "arduous endeavors."
✓ Grammatically correct
Science
News & Media
Wiki
Alternative expressions(20)
arduous tasks
challenging tasks
complex endeavors
elaborate operations
demanding assignments
strenuous efforts
formidable challenges
taxing assignments
strenuous endeavors
daunting chores
onerous duties
daunting challenges
grueling tasks
onerous tasks
grueling work
grueling assignment
demanding purposes
exacting requirements
demanding requirements
applications purposes
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
15 human-written examples
When you're involved in intense, difficult activities, there is intensity of feelings, and people say things that are totally untrue.
News & Media
Centrality expresses a player's expertise, responsibility and involvement in more difficult activities within the community practice, exactly as originally defined by Lave and Wenger (1991).
Science
Recovery of independence in the more difficult activities of bathing, stair climbing, and problem solving does not occur until the higher stages are reached.
Such a method is intended to support the ontology engineer in difficult activities that are becoming fundamental in the development of the Semantic Web, such us ontology merging and ontology mapping and, in particular, it can be used in parallel to existing semi-automatic tools relying on FCA.
Science
Participation in sporting activities, certain occupations, and caring for family members can become difficult activities for those with plaques located on their hands and feet.
Wiki
"Pushing up from a chair" and "carrying 10 lbs" remained the most difficult activities throughout recovery.
Human-verified similar examples from authoritative sources
Similar Expressions
45 human-written examples
"Voting should not be a difficult activity; everyone entitled to vote should be able to vote," he writes on his election-law blog.
News & Media
Knowing when to stand firm on principle or when to find common ground with your fellow citizens is the most important, and also the most difficult, activity in a democracy.
News & Media
"I want to bring drawing back to the basics, make it about the pleasure that it can afford and remove the notion that it's some kind of precious or difficult activity.
News & Media
Like anyone who has developed a skill in performing a complex and difficult activity, the virtuous person takes pleasure in exercising his intellectual skills.
Science
Sarraute et al. [42] discuss that attack graphs have been proposed as a tool to help testers understand the potential weaknesses in the target network, once that assessing network security is a complex and difficult activity.
Expert writing Tips
Best practice
When describing "difficult activities", specify the aspect of difficulty. Is it physically demanding, intellectually challenging, or emotionally taxing? Providing context enhances clarity.
Common error
Avoid relying solely on "difficult" without further elaboration. Replace it with adjectives that offer more detail, such as "complex", "strenuous", or "demanding", to provide a clearer picture of the activity's nature.
Source & Trust
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "difficult activities" functions as a noun phrase where the adjective "difficult" modifies the noun "activities". Ludwig AI indicates that this phrase is grammatically correct and usable in written English. It is typically used to describe tasks or actions that require significant effort or skill.
Frequent in
Science
47%
News & Media
30%
Wiki
7%
Less common in
Formal & Business
5%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "difficult activities" is a grammatically correct and commonly used expression to describe tasks or actions that require considerable effort, skill, or problem-solving abilities. As confirmed by Ludwig, the expression is suitable for various contexts ranging from scientific research to everyday conversation. To enhance clarity, it's best to specify the nature of the difficulty, such as whether it's physically demanding, intellectually challenging, or emotionally taxing. Alternatives like "challenging tasks" or "complex endeavors" can provide nuance or formality depending on the situation.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
challenging tasks
This alternative directly replaces 'activities' with 'tasks' and 'difficult' with 'challenging', resulting in a similar meaning, focusing on the demanding nature.
arduous tasks
This alternative uses 'arduous' to emphasize the effort and exertion involved, which makes it slightly stronger than 'difficult'.
complex endeavors
This alternative shifts the focus to the intricacy and multifaceted nature of the activities, rather than the level of difficulty.
demanding pursuits
This alternative uses 'demanding' to highlight the high requirements and expectations associated with the activities.
taxing undertakings
This alternative uses 'taxing' to emphasize the strain and burden that the activities impose.
strenuous exercises
This alternative is best suited to describe physical activities, emphasizing the vigor and intensity required.
complicated procedures
This alternative focuses on activities that have many steps and require careful attention to detail.
problematic assignments
This alternative is apt when activities involve overcoming obstacles or resolving issues.
trying experiences
This alternative suggests activities that test one's resilience and patience.
elaborate operations
This alternative is suitable for describing well-organized activities with a complex structure and planning.
FAQs
How can I replace "difficult activities" in a sentence to make it sound more formal?
Consider using phrases like "challenging endeavors", "complex operations", or "arduous tasks" to convey a more formal tone.
What is the difference between "difficult activities" and "challenging activities"?
While similar, "difficult activities" generally implies a higher degree of effort or skill required, whereas "challenging activities" may simply mean that the activities test one's abilities or require problem-solving skills. The terms are often interchangeable but depend on the specific context.
How to use "difficult activities" in a sentence?
You can use "difficult activities" to describe tasks or actions that require significant effort, skill, or concentration. For example, "Climbing a mountain is one of the most difficult activities I've ever attempted."
Are there activities that are always considered "difficult activities"?
The perception of whether an activity is considered "difficult" depends largely on an individual's skills, experience, and physical condition. What one person finds easy, another might find to be among the most "difficult activities".
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
80%
Authority and reliability
4.1/5
Expert rating
Real-world application tested