is imperfectly known

USAGE SUMMARY

The phrase "is imperfectly known" is correct and usable in written English.
It can be used when discussing information or knowledge that is incomplete or not fully understood. Example: "The history of the ancient civilization is imperfectly known, leaving many questions unanswered."

✓ Grammatically correct

Science

Encyclopedias

News & Media

Human-verified examples from authoritative sources

Exact Expressions

9 human-written examples

The history of the Isle of Man is imperfectly known.

Encyclopedia Britannica

Further population and karyotype research is needed; the whole group of Luzula comosa and Luzula subsessilis is imperfectly known.

University of California, Berkeley

We assume that all the channel state information (CSI) is imperfectly known at the relay subject to norm-bounded CSI errors.

EURASIP Journal on Wireless Communications and Networking

In other words, the CSI from S/R to D/Es is imperfectly known at S and R. Here, the CSI uncertainties are modeled by worst-case model as in [21, 31].

EURASIP Journal on Wireless Communications and Networking

Specifically, the authors in [24 27], and [28] respectively showed that AN is of paramount importance to physical-layer security when there exist multiple eavesdroppers in the network, when the CSI of eavesdropper(s) is imperfectly known at the transmitter, and/or when eavesdroppers are randomly located in the network.

EURASIP Journal on Wireless Communications and Networking

For example, he argued that for "cabozoan", " the phylogeny of both groups is imperfectly known.

Biology Direct

Human-verified similar examples from authoritative sources

Similar Expressions

51 human-written examples

This paper proposes a sliding mode observer scheme to reconstruct actuator and sensor faults in a situation where the scheduling parameters are imperfectly known.

European Journal of Control

On the other hand, uncertainty arises when the chances governing stochastic factors are imperfectly known.

Pastoralism: Research, Policy and Practice

Since the CSIs are imperfectly known, Q 1 cannot be solved by using zero-gradient (ZG) algorithm [16].

EURASIP Journal on Wireless Communications and Networking

By contrast, h c,k and h p,l, which are obtained by channel feedback from cognitive destinations and primary users, are imperfectly known at the cognitive relay.

EURASIP Journal on Wireless Communications and Networking

ALMA's observations are helping pinpoint Pluto's position and path around the sun, which to this day are imperfectly known, researchers said.

Huffington Post

Expert writing Tips

Best practice

When using "is imperfectly known", ensure the context clearly indicates what specific aspect is lacking complete understanding. For example, instead of saying "The process is imperfectly known", specify, "The exact mechanism of the process is imperfectly known."

Common error

Avoid using "is imperfectly known" when there is substantial information available. Choose more nuanced language, such as "certain aspects remain unclear" if only specific details are uncertain. Be precise in indicating the scope of the unknown.

Linguistic Context

The phrase "is imperfectly known" functions as a descriptive statement indicating that knowledge about a particular subject is incomplete or not fully understood. As Ludwig AI points out, it's grammatically correct and widely used.

Expression frequency: Common

Frequent in

Science

50%

Encyclopedias

20%

News & Media

20%

Less common in

Formal & Business

10%

Reference

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "is imperfectly known" is a grammatically sound and frequently employed expression to indicate incomplete knowledge about a subject. As Ludwig AI confirms, it's correct and usable in written English. Its usage is most prevalent in scientific, encyclopedic, and news contexts, signaling a formal register suitable for academic and professional discussions. When using this phrase, ensure you clearly define what specific aspect lacks complete understanding to avoid ambiguity. Alternatives such as "is not fully understood" or "remains unclear" can provide similar nuance depending on the context.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

is not fully understood

Emphasizes a lack of comprehensive understanding rather than just imperfect knowledge.

is partially understood

Highlights that some understanding exists, but it's incomplete.

is not completely clear

Focuses on the lack of clarity or certainty regarding the subject.

remains unclear

Indicates that the subject continues to lack definitive explanation.

is not definitively established

Emphasizes the absence of conclusive evidence or confirmation.

is subject to debate

Highlights ongoing discussions and differing viewpoints regarding the subject.

is open to interpretation

Suggests that the subject can be understood in multiple ways.

is a matter of speculation

Indicates that the subject is based on conjecture rather than concrete evidence.

is shrouded in mystery

Implies that the subject is obscured by secrets or unknown factors.

is poorly documented

Focuses on the lack of thorough records or information about the subject.

FAQs

What does "is imperfectly known" mean?

The phrase "is imperfectly known" means that the information or understanding about a particular subject is incomplete or not fully clear. It suggests a degree of uncertainty or a lack of comprehensive knowledge.

What can I say instead of "is imperfectly known"?

You can use alternatives like "is not fully understood", "is partially understood", or "remains unclear" depending on the specific context and nuance you want to convey.

How do I use "is imperfectly known" in a sentence?

You can use "is imperfectly known" to describe a topic where knowledge is limited. For example: "The history of this ancient civilization "is imperfectly known", leaving many questions unanswered."

Is it appropriate to use "is imperfectly known" in formal writing?

Yes, "is imperfectly known" is appropriate for formal writing, particularly in academic or scientific contexts, as it provides a precise and professional way to express a lack of complete understanding.