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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
that was challenging
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that was challenging" is correct and usable in written English.
You can use it to describe a past experience or task that required significant effort or skill to complete. Example: "The exam was difficult, but I felt accomplished afterward because I knew that was challenging."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(3)
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
46 human-written examples
The share price was back to a level that was challenging to defend.
News & Media
What's a head-scratcher that you still think about, something that was challenging to track down?
News & Media
I had a very simple, solitary childhood and I wanted an adult life that was challenging.
News & Media
MS. RUSSELL When I had to kick [the actor David Vadim's] head through the wall, that was challenging.
News & Media
It was designed to represent a functional activity that was challenging yet feasible for children with CP.
Science
"Back then, there were subsidised theatre structures and the underbelly that was challenging people from a creative or political standpoint," he says.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
14 human-written examples
Work that is challenging.
Wiki
Teach at a level that is challenging.
Wiki
Pima90-53 that were challenged with V. dahliae.
Science
And so, that's challenging.
News & Media
"I know that's challenging.
News & Media
Expert writing Tips
Best practice
When using "that was challenging", ensure that the context clearly indicates what "that" refers to, avoiding ambiguity.
Common error
Avoid using "that was challenging" without a clear reference to what "that" represents. Ensure the antecedent is explicitly stated to prevent confusion.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that was challenging" functions as a subjective evaluation, expressing the speaker's perception of a past event or situation as requiring significant effort or skill. As supported by Ludwig, it is deemed correct and usable in written English.
Frequent in
News & Media
40%
Science
30%
Academia
15%
Less common in
Formal & Business
5%
Wiki
5%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "that was challenging" is a grammatically sound and frequently employed phrase utilized to articulate the demanding nature of a past endeavor. As Ludwig AI validates, it is deemed correct and suitable for various writing styles. Its prevalence spans across diverse contexts such as "News & Media", "Science", and "Academia". When employing this phrase, ensure the antecedent is unmistakably clear to avoid ambiguity. Alternatives such as "that was difficult", "that was tough", and "that was demanding" offer nuanced substitutions depending on the intended emphasis.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that was demanding
Emphasizes the effort and requirements imposed by the situation.
that was difficult
A more general term indicating a degree of hardship.
that was tough
Implies resilience was needed to overcome the hurdle.
that was complex
Highlights the intricate and multifaceted nature of the challenge.
that was formidable
Suggests the challenge was intimidating and powerful.
that was tricky
Emphasizes the need for careful maneuvering and cleverness.
that was problematic
Focuses on the issues and obstacles presented.
that was strenuous
Highlights the physical and mental exertion involved.
that was taxing
Emphasizes the depleting effect on one's resources or energy.
that was exacting
Highlights the high standards and precision required.
FAQs
How can I use "that was challenging" in a sentence?
Use "that was challenging" to describe a task, situation, or experience that required effort and skill. For example: "The project was difficult, but completing "that was challenging" and rewarding."
What are some alternatives to "that was challenging"?
You can use alternatives like "that was difficult", "that was tough", or "that was demanding" depending on the specific nuance you want to convey.
Is it correct to say "that was challenging"?
Yes, "that was challenging" is grammatically correct and commonly used in English. It is a standard way to describe something that presented a significant level of difficulty or required considerable effort.
What is the difference between "that was challenging" and "that was difficult"?
While similar, "that was challenging" often implies an opportunity for growth or learning, whereas "that was difficult" may simply emphasize the hardship involved. The choice depends on the specific context and the speaker's intention.
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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