is not fully understood

USAGE SUMMARY

The phrase 'is not fully understood' is correct and usable in written English.
You can use it when you want to express that something has not been completely understood or comprehended. For example: "The long-term effects of the virus on human health is not fully understood."

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

The condition is not fully understood.

The Guardian

The exact function of calcitonin is not fully understood.

Encyclopedia Britannica

Its role in male reproduction is not fully understood.

Encyclopedia Britannica

The mechanism underlying this treatment strategy is not fully understood.

The New York Times - Science

Its pathophysiology is not fully understood.

Insights into Imaging

However, the pathophysiology of migraine is not fully understood.

The Journal of Headache and Pain

The reason for this observation is not fully understood.

EJNMMI Research

At present this behaviour is not fully understood.

Combustion and Flame

The pathophysiology of migraine is not fully understood.

The Journal of Headache and Pain

The pathophysiology of hemicrania continua is not fully understood.

The Journal of Headache and Pain

The reason for this hesitation is not fully understood.

Smart Learning Environments

Expert writing Tips

Best practice

When using "is not fully understood", ensure the context clearly indicates what aspect lacks complete comprehension. Provide additional details or context to guide the reader's understanding.

Common error

Avoid using "is not fully understood" as a conversational filler. Only use it when there is genuine ambiguity or lack of comprehensive knowledge about a specific topic. Providing any information about what is known will add nuance.

Linguistic Context

The phrase "is not fully understood" functions as a qualifier to indicate a lack of complete comprehension or knowledge about a specific subject, concept, or phenomenon. Ludwig AI confirms its correctness and usability.

Expression frequency: Very common

Frequent in

Science

76%

News & Media

10%

Encyclopedias

3%

Less common in

Wiki

2%

Formal & Business

0%

Social Media

0%

Ludwig's WRAP-UP

The phrase "is not fully understood" is a versatile expression used to convey that something lacks complete comprehension. Ludwig AI confirms that it is grammatically sound and widely applicable. It appears most frequently in scientific and academic contexts, highlighting areas where further research or clarification is needed. While alternatives like "is not completely understood" and "remains poorly understood" exist, "is not fully understood" provides a clear and professional way to acknowledge the limits of current knowledge. When using this phrase, ensure that the context is specific and provides clarity about what exactly is not fully understood. Avoid overuse, and consider the audience to determine the most appropriate level of formality.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

is not completely understood

Replaces "fully" with "completely", a synonym that indicates a lack of total understanding.

is not entirely clear

Shifts the focus to clarity rather than complete understanding, implying some ambiguity.

remains poorly understood

Emphasizes the continuing lack of understanding over time.

is not well-defined

Suggests that the concept lacks precise boundaries or characteristics.

is still under investigation

Highlights the ongoing effort to gain a better understanding.

remains an enigma

Implies that the subject is mysterious and difficult to understand.

is subject to debate

Indicates that there are differing opinions and a lack of consensus.

is open to interpretation

Suggests that the meaning is not fixed and can be understood in multiple ways.

is a matter of speculation

Implies that any understanding is based on guesswork rather than solid evidence.

defies explanation

Conveys that the subject is inherently difficult or impossible to explain.

FAQs

How can I use "is not fully understood" in a sentence?

Use "is not fully understood" to indicate that something lacks complete comprehension or knowledge. For example: "The precise mechanism of this reaction is not fully understood."

What can I say instead of "is not fully understood"?

You can use alternatives like "is not completely understood", "remains poorly understood", or "is not entirely clear" depending on the specific context.

Is it appropriate to use "is not fully understood" in formal writing?

Yes, "is not fully understood" is appropriate for formal writing, particularly in scientific, academic, and technical contexts, to acknowledge limitations in current knowledge.

What's the difference between "is not fully understood" and "is unknown"?

"Is not fully understood" suggests that some aspects are known, but a complete understanding is lacking. "Is unknown" implies that virtually nothing is known about the subject.