was left unknown

USAGE SUMMARY

"was left unknown" is a correct and usable phrase in written English.
You can use it to refer to something that was not known or understood. For example, "The reason for the sudden disappearance of the missing person was left unknown."

✓ Grammatically correct

Science

News & Media

Wiki

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

On the first three days, mice were placed in the black floor/white wall compartment of the apparatus for 25 min, in order to familiarise with the procedure and apparatus, while the other compartment was left unknown.

Behavioral and Brain Functions

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

"Anything that is unknown is better to be left unknown," said John York, the owner of the San Francisco 49ers.

The New York Times - Sports

The signal amplitude and rise/falling time of the signal changes depend on where the electrode is placed, and the gesture, however the pattern of the change is left unknown.

Cornell University

The testing set consists of patterns just represented by the input component, while the output component is left unknown and its value results from the ANN algorithm for that specific input.

Renewable and Sustainable Energy Reviews

Nevertheless, because of complexity of human's neuronal system that interacts with the body dynamics system to make walking movements, much is left unknown about the control mechanism of locomotion, and researchers were looking for the optimal model of the neuronal system by extensive efforts of trials and errors.

Mechatronics

However, its mechanism is left unknown.

Earth, Planets and Space

The course emphasizes what we know, how we learned it, and what is left unknown.

Evolution: Education and Outreach

The mechanism or reason of the amplification of seismic waves in this frequency range at KKA is left unknown.

Earth, Planets and Space

However, if sets N k have been obtained by one of the proposed CA algorithms, only the power allocation vectors are left unknown.

EURASIP Journal on Advances in Signal Processing

However, if optimal N k would be known a priori, only the power allocations p ( S k ) and p ( R ) at the source and the relay node are left unknown.

EURASIP Journal on Advances in Signal Processing

If the aqueous solubility is unavailable it can either be left unknown and determined by regression or predicted using ACD Labs ACD/ADME Suite or through the freely available VCC Labs ALOGPS webservice [10].

Chemistry Central Journal

Expert writing Tips

Best practice

Avoid using "was left unknown" when a more direct statement of ignorance or lack of information would be more concise and impactful.

Common error

Be mindful of overusing passive constructions like "was left unknown". Active voice often results in clearer and more direct writing. Consider whether rephrasing with an active subject and verb would improve your sentence.

Linguistic Context

The phrase "was left unknown" functions as a passive construction used to indicate that a piece of information or a reason remained undiscovered or unrevealed. Ludwig AI provides various examples where the subject's state or cause was not determined or clarified.

Expression frequency: Common

Frequent in

Science

34%

News & Media

33%

Wiki

10%

Less common in

Formal & Business

7%

Encyclopedias

5%

Reference

5%

Ludwig's WRAP-UP

In summary, the phrase "was left unknown" is a grammatically correct and frequently used passive construction that indicates a lack of information or discovery. As Ludwig AI points out, it conveys that something remained unresolved or not clarified. Its neutral register makes it suitable for diverse contexts, including science, news, and general writing. While versatile, be mindful of overusing passive voice and consider whether a more direct, active construction might enhance clarity. Understanding the nuances between "was left unknown" and related phrases such as "remained unresolved" or "stayed unclear" can help you choose the most precise wording for your intended meaning.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

remained unresolved

This alternative focuses on the lack of resolution or a definitive answer to a question or situation.

stayed unclear

This option emphasizes the continuing lack of clarity or understanding surrounding a subject.

was not clarified

This alternative highlights the absence of clarification or explanation.

went uninvestigated

This emphasizes the lack of formal inquiry or examination.

remained a mystery

This emphasizes the unsolved and enigmatic nature of something.

was left unaddressed

This suggests that the issue was not dealt with or discussed.

was not determined

This indicates that a final decision or conclusion was not reached.

was consigned to oblivion

This phrase suggests that something has been forgotten or ignored.

was lost to the mists of time

This poetic expression implies that something is no longer retrievable due to the passage of time.

escaped understanding

This emphasizes that the topic or matter at hand was misunderstood or hard to understand.

FAQs

How can I use "was left unknown" in a sentence?

You can use "was left unknown" to indicate that information remained undiscovered or unspecified. For example, "The motive for the crime "was left unknown" due to lack of evidence."

What are some alternatives to "was left unknown"?

Alternatives to "was left unknown" include "remained unresolved", "stayed unclear", or "was not clarified", depending on the specific nuance you want to convey.

Is it better to say "remained unknown" or "was left unknown"?

Both "remained unknown" and "was left unknown" are grammatically correct, but they have slightly different connotations. "Remained unknown" suggests a state of continuous ignorance, while "was left unknown" suggests a process or action that resulted in the information not being discovered or revealed.

What is the difference between "unspecified" and "was left unknown"?

"Unspecified" means that something was intentionally not detailed or defined, while "was left unknown" implies that something could not be known or was not discovered. Something can be unspecified by design, but "was left unknown" usually suggests a lack of knowledge or information.