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
fundamental question
Grammar usage guide and real-world examplesUSAGE SUMMARY
"fundamental question" is a correct and usable term in written English.
You can use it to refer to a question which is important and necessary for further understanding of a topic or discussion. For example: "What is the fundamental question we must answer to better understand this issue?".
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(20)
core question
essential question
key question
crucial question
foundational question
basic question
underlying question
central issue
main issue
primary concern
critical question
ultimate question
underlying subject
remaining doubt
protracted question
unanswered inquiry
real question
unsettled matter
underlying concerns
elementary question
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
57 human-written examples
"That's a fundamental question.
News & Media
One fundamental question is about coordination.
News & Media
"That is the fundamental question".
News & Media
It doesn't answer the fundamental question.
News & Media
"Why we sleep is a fundamental question.
News & Media
"Our country faces a fundamental question.
News & Media
Szwed circles evasively around this fundamental question.
News & Media
It's the fundamental question of modern art.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
3 human-written examples
Fundamental questions remain.
News & Media
Two fundamental questions have been in play.
News & Media
* Fundamental questions still thwart researchers.
News & Media
Expert writing Tips
Best practice
When posing a "fundamental question", ensure it's clear, concise, and directly relevant to the core issue.
Common error
Avoid starting every discussion with "fundamental question". Instead, vary your language and use other phrases like "core issue" or "key concern" to maintain reader engagement.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "fundamental question" primarily functions as a noun phrase, acting as the subject or object of a sentence. It identifies a core inquiry that needs to be addressed. Ludwig AI confirms that it is correct and usable.
Frequent in
News & Media
45%
Academia
30%
Science
25%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "fundamental question" is a frequently used and grammatically correct noun phrase that introduces a core inquiry across various domains. According to Ludwig AI, it is appropriate for general usage and effective for identifying a critical question that is essential for understanding a topic, problem, or situation. Its prevalence in sources like The New York Times, The Guardian, and academic publications highlights its suitability for formal and analytical contexts. Related phrases such as "essential question" and "core question" can be used for variation. Be mindful of overuse to maintain writing engagement.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
essential question
Highlights the necessity and importance of the inquiry.
crucial question
Indicates that the question is critical and vital for progress.
key question
Emphasizes the importance of the question in unlocking understanding.
foundational question
Similar to "basic question" but emphasizes the role in building a framework.
core question
Focuses on the most central aspect of the issue.
basic question
Underlines the foundational nature of the inquiry.
underlying question
Focuses on the implicit question behind the surface issues.
central issue
Shifts from a question to the key problem or point of contention.
main issue
Similar to "central issue" but slightly broader in scope.
primary concern
Highlights the main worry or focus of attention.
FAQs
How can I use "fundamental question" in a sentence?
You can use "fundamental question" to introduce a critical inquiry. For example: "The "fundamental question" is, how do we address climate change effectively?"
What are some alternatives to "fundamental question"?
Alternatives include "core question", "essential question", or "key question", depending on the specific context.
Is it appropriate to use "fundamental question" in formal writing?
Yes, "fundamental question" is suitable for formal writing, especially when introducing a key issue that requires exploration. However, consider alternatives like "central issue" for variety.
What makes a question "fundamental"?
A question is considered "fundamental" when it addresses a core principle or assumption upon which further reasoning or analysis depends. Addressing this question is crucial for resolving related issues.
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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested