unclear to define

USAGE SUMMARY

The phrase "unclear to define" is correct and usable in written English.
It can be used when discussing concepts, terms, or ideas that lack a clear or precise definition. Example: "The term 'freedom' can be quite complex and often feels unclear to define in various contexts."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

If the objective is too unclear to define with respect to the data, try to create intermediate results to help your teams be more effective.

Harvard Business Review

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

It is unclear how to define, and achieve, max-min fairness in the presence of such constraints.

University of California, Berkeley

Since it is unclear how to define the notion of a weak solution to this equation, we regularize the noise and introduce a family of approximations.

Journal of Computational Physics

It is unclear how to define patients potentially benefiting from de-escalated treatment, whether a positive smoking history impacts survival data and what kind of de-escalation might be best.

Cancer Letters

Another problem, Dr. Stringer said, is that in the last three decades, as the number of fossils attributed to habilis has grown, it has become unclear how to define what is and is not a member of that Homo species.

The New York Times - Science

Another problem, Dr. Stringer said, is that in the last three decades, as the number of fossils attributed to H. habilis has grown, it has become unclear how to define what is and is not a member of that Homo species.

Evolution: Education and Outreach

It remains somewhat unclear how to define metabolic response of mRCC with PET.

BMC Cancer

In some cases chiropractic is already considered to be part of "usual care," so if the treatment is to provide chiropractic services, it would be unclear how to define "usual care" in the control arm.

BMC Complementary and Alternative Medicine

An additional confounding issue is that tumor markers may be used in applications other than diagnosis, and in these situations it may be unclear how to define the target condition or clinical sensitivity and specificity.

Clinical Proteomics

13 15 It is also unclear how to define sustained safe patient care (eg, is it the extent to which effective processes for ensuring patient care are embedded within an organisational system, or the length of time since a patient safety incident has occurred on a particular ward?).

BMJ Quality and Safety

In particular, it is often unclear how best to define the population among which a specified number of legislative seats are to be apportioned.

Encyclopedia Britannica

Expert writing Tips

Best practice

When using "unclear to define", ensure the context clearly indicates what is lacking a clear or precise definition. Provide specific examples or reasons for the lack of clarity to enhance understanding.

Common error

Avoid using "unclear to define" without specifying what exactly is difficult to define. Vague statements can confuse readers. Instead, be specific about the concept or term that lacks clarity.

Linguistic Context

The phrase "unclear to define" functions as an infinitive phrase that typically modifies a noun or pronoun, expressing a state of ambiguity or lack of clarity in relation to a specific concept or term. As Ludwig AI confirms, it is usable in written English.

Expression frequency: Uncommon

Frequent in

Science

50%

News & Media

30%

Academia

20%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "unclear to define" serves as a grammatically sound way to express that a concept or term lacks a clear or precise definition. As indicated by Ludwig AI, it's a correct and usable expression in English. While not exceedingly common, it appears across diverse contexts, particularly in science, news, and academic writing. Alternative phrasing, such as "difficult to define" or "hard to delineate", offer similar shades of meaning. When employing "unclear to define", ensure that the subject of the ambiguity is explicitly stated to avoid vagueness and enhance clarity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

Difficult to define

Emphasizes the challenge or complexity involved in providing a clear definition.

Not well-defined

Indicates that the definition is inadequate or incomplete.

Lacking a clear definition

Directly states that a precise definition is absent.

Not easily defined

Suggests that defining the subject is not a straightforward task.

Hard to delineate

Focuses on the difficulty of establishing precise boundaries or limits.

Vague to specify

Highlights the lack of clarity or precision when trying to specify something.

Ambiguous in definition

Indicates that the definition is open to multiple interpretations.

Resistant to definition

Implies that the subject actively resists being confined by a fixed definition.

Elusive to define

Highlights the subtlety and difficulty in capturing the essence of something through definition.

Challenging to characterize

Shifts the focus from definition to the broader act of describing or classifying.

FAQs

How can I use "unclear to define" in a sentence?

You can use "unclear to define" when referring to concepts or terms that lack a precise or well-established definition. For example, "The concept of 'sustainability' is often "difficult to define" in practical terms".

What are some alternatives to "unclear to define"?

Alternatives include "difficult to define", "hard to delineate", or "ambiguous in definition", depending on the specific nuance you wish to convey.

Is it grammatically correct to say "unclear to define"?

Yes, the phrase "unclear to define" is grammatically correct and commonly used to express that something lacks a clear or precise definition.

What's the difference between "unclear to define" and "poorly defined"?

"Unclear to define" suggests that the process of defining something is problematic or lacks clarity. "Poorly defined" implies that a definition exists but is inadequate or insufficient. For instance, a policy might be "poorly defined", whereas a philosophical concept might be "unclear to define".