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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
hard to define
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'hard to define' is correct and usable in written English.
You can use it when you want to express that something is difficult to describe or explain using words. For example: "The concept of friendship is hard to define".
✓ Grammatically correct
News & Media
Academia
Alternative expressions(20)
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
58 human-written examples
It's hard to define".
News & Media
Sometimes it's hard to define".
News & Media
He was hard to define.
News & Media
"It's hard to define," she said.
News & Media
It's hard to define Britishness.
News & Media
Judgment is hard to define.
News & Media
SPEER: That is hard to define.
Academia
Temperature actually is pretty hard to define.
Academia
It's sometimes awfully hard to define waste.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
Sepsis is a hard-to-define condition.
Science
It's very touching for reasons that are hard to define".
News & Media
Expert writing Tips
Best practice
Combine "hard to define" with examples or illustrative scenarios to convey the intangible qualities of the subject you're describing.
Common error
Avoid using "hard to define" as a substitute for deeper analysis. If something is difficult to define, attempt to explain why it is so, rather than simply stating the difficulty.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
Adjective phrase functioning as a descriptor. "Hard to define" typically modifies a noun or concept, indicating that it lacks clear boundaries or is difficult to express precisely. Ludwig confirms the grammatical validity and broad applicability of this phrase.
Frequent in
News & Media
68%
Academia
19%
Science
5%
Less common in
Encyclopedias
2%
Formal & Business
2%
Wiki
2%
Ludwig's WRAP-UP
In summary, "hard to define" is a grammatically sound and frequently used phrase to express the difficulty in clearly and precisely defining something. Ludwig AI confirms its validity and usability. It is commonly found in news articles, academic papers, and everyday conversation, indicating its broad applicability. While versatile, it's important to provide context and avoid using it as a substitute for deeper analysis. Alternatives like "difficult to articulate" or "elusive to pinpoint" can be used for variety. The phrase's neutral register makes it appropriate for diverse writing styles.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
lacking a clear definition
Directly states the absence of a precise definition.
tough to put into words
Highlights the difficulty in verbally expressing something.
difficult to articulate
Emphasizes the struggle to express something clearly in words.
challenging to delineate
Focuses on the problem of setting clear boundaries or limits.
hard to put your finger on
Idiomatic expression for something that's difficult to identify or understand.
elusive to pinpoint
Highlights the evasive nature of trying to identify something precisely.
not easily classified
Indicates that something doesn't fit neatly into existing categories.
resistant to categorization
Stresses the object's property of being difficult to assign to a class or category.
indistinct
Implies a lack of clarity or definition.
vague and undefined
Emphasizes the lack of precision and clarity.
FAQs
How can I use "hard to define" in a sentence?
You can use "hard to define" to describe concepts, feelings, or abstract ideas that lack a clear or precise definition. For instance, "The essence of happiness is "hard to define", but easy to recognize when experienced".
What are some alternatives to "hard to define"?
Depending on the context, you could use alternatives like "difficult to articulate", "challenging to delineate", or "elusive to pinpoint".
Is it better to say "difficult to define" or "hard to define"?
Both "difficult to define" and "hard to define" are grammatically correct and interchangeable. "Hard" is slightly more informal than "difficult", but both are widely accepted.
What makes something "hard to define"?
Something might be "hard to define" because it's abstract, subjective, lacks clear boundaries, or has multiple interpretations. It could also be due to its complex or evolving nature.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested