difficult to classify

USAGE SUMMARY

The phrase "difficult to classify" is correct and usable in written English.
You can use it when describing something that does not easily fit into a specific category or classification. Example: "The new species of plant discovered in the rainforest is difficult to classify due to its unique characteristics."

✓ Grammatically correct

Encyclopedia

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

Biographies are difficult to classify.

Encyclopedia Britannica

Basinski's music is difficult to classify.

The New Yorker

IT'S difficult to classify Bruce Bartlett politically.

The Economist

It's difficult to classify Dermansky's work.

The Guardian - Books

Mr. Caymmi (pronounced kah-EE-mee) is difficult to classify.

The New York Times - Arts

Titled Love Remains, it was difficult to classify.

The Guardian - Music

These multiple personalities made Purdy difficult to classify.

The New York Times - Books

IT is getting more and more difficult to classify or categorize most contemporary art.

The New York Times

Aira's novels are difficult to classify — they're by turns realist, surrealist, absurd, and philosophical.

The New Yorker

Soon, however, he noticed patients with other problems that were more difficult to classify.

The New Yorker

Katharine Temple Emmet, on the other hand, is difficult to classify.

The New York Times - Style

Expert writing Tips

Best practice

When using "difficult to classify", ensure that the reason for the difficulty is clear to the reader. Providing specific examples or characteristics that make classification challenging strengthens the statement.

Common error

Avoid stating that something is "difficult to classify" without providing context. Explain why it's challenging; otherwise, the statement lacks substance and can appear vague.

Linguistic Context

The phrase "difficult to classify" functions as an adjective phrase followed by an infinitive. It describes the inherent challenge or obstacle in assigning something to a specific category or group. Ludwig confirms its validity and diverse usage.

Expression frequency: Very common

Frequent in

Science

39%

News & Media

34%

Encyclopedias

5%

Less common in

Formal & Business

0%

Social Media

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "difficult to classify" is a versatile and grammatically sound phrase used to describe the challenge of assigning something to a specific category. As Ludwig AI confirms, it's frequently employed in both academic and general contexts, indicating its broad applicability. When using this phrase, ensure clarity by explaining the reasons behind the classification difficulty. Alternatives like "hard to categorize" or "challenging to define" offer similar meanings with slight variations in tone. Therefore, based on the high number of examples and its wide usage, it's a correct phrase to use.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

hard to categorize

Replaces "difficult" with "hard" and "classify" with "categorize", offering a slightly more informal tone.

challenging to categorize

Substitutes "difficult" with "challenging", suggesting a demanding but potentially rewarding categorization process.

tough to classify

Uses "tough" instead of "difficult", conveying a sense of resistance or resilience in the face of categorization.

problematic to classify

Highlights that the classification process presents specific problems or issues.

not easily categorized

Emphasizes the lack of ease in assigning something to a category.

defies categorization

Indicates that something actively resists or avoids being categorized.

resists classification

Similar to "defies categorization" but puts more focus on the act of resistance.

presents classification challenges

Focuses on the challenges involved in classifying something, rather than the inherent difficulty.

is of uncertain classification

Highlights the uncertainty surrounding an object or idea's proper category.

eludes definitive classification

Implies that a clear and final classification is unattainable.

FAQs

How can I use "difficult to classify" in a sentence?

You can use "difficult to classify" to describe something that doesn't fit neatly into established categories. For example: "The artist's work is "difficult to classify" because it blends elements of painting and sculpture."

What are some alternatives to saying "difficult to classify"?

Alternatives include "hard to categorize", "challenging to categorize", or "tough to classify", depending on the specific nuance you want to convey.

Is it better to say "difficult to classify" or "difficult to categorize"?

Both "difficult to classify" and "difficult to categorize" are correct and largely interchangeable. The choice often depends on stylistic preference. "Classify" may be slightly more formal in certain contexts.

What makes something "difficult to classify"?

Something might be "difficult to classify" if it has unique characteristics, combines elements from multiple categories, or lacks clear precedents. Its ambiguity can lead to uncertainty about its proper placement within existing systems.