are still unsolved

USAGE SUMMARY

The phrase "are still unsolved" is correct and usable in written English.
It can be used to describe problems, questions, or mysteries that have not yet been resolved or answered. Example: "Many of the challenges we face in science are still unsolved, leaving researchers with much work to do."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

39 human-written examples

Most of the killings are still unsolved.

The New York Times

But there are hundreds of cases out there that are still unsolved.

The Guardian - Arts

The physiological roles of silent genes are still unsolved puzzles and their application potentials are unexplored.

Metabolic Engineering

But many issues between Mosul and the central government of Baghdad are still unsolved.

The New Yorker

Nevertheless several control problems are still unsolved, because of the intrinsic nonlinear behaviour, lack of measurements and large model uncertainties.

IFAC Proceedings Volumes

According to Paul Weissman, the state House majority leader and the bill's co-sponsor, around 1,400 murders are still unsolved in the state.

The Economist

Human-verified similar examples from authoritative sources

Similar Expressions

21 human-written examples

The crime is still unsolved.

The New Yorker

The twin-prime conjecture is still unsolved.

The New Yorker

The contagion puzzle was still unsolved.

The Economist

The crime is still unsolved.Mr Rosenthal was not stupid.

The Economist

The Greek situation is still unsolved and markets are going to remain very nervous".

The New York Times

Expert writing Tips

Best practice

Use this phrase to emphasize the continuing lack of a solution, especially when previous attempts have been made.

Common error

Avoid using "are still unsolved" in contexts where the problem is newly identified or has not yet been actively addressed. The phrase implies a prolonged period without resolution.

Linguistic Context

The phrase "are still unsolved" functions as a predicate adjective, describing the state of a noun (problems, questions, cases, etc.). Ludwig AI confirms this phrase is appropriate for use in written english.

Expression frequency: Common

Frequent in

Science

40%

News & Media

56%

Formal & Business

4%

Less common in

Reference

0%

Wiki

0%

Encyclopedias

0%

Ludwig's WRAP-UP

The phrase "are still unsolved" is a grammatically sound and frequently used expression, particularly in scientific and news-related contexts. Ludwig AI confirms its validity, indicating it is appropriate for use in written english. Its function is to describe unresolved problems or questions, often highlighting the persistence of these issues over time. For alternatives, consider phrases like "remain unresolved" or "are yet to be solved", but ensure they align with the intended nuance. When writing, clarity is paramount; clearly define what problems you're referring to and avoid using the phrase for newly identified issues. The phrase's prevalence across authoritative sources underscores its acceptance in both formal and neutral registers.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

remain unresolved

Replaces "are still" with "remain", focusing on the continued state of being unresolved.

are yet to be solved

Emphasizes the future expectation of a solution, changing "still unsolved" to "yet to be solved".

are pending resolution

Focuses on the expectation of a solution in the future, while still maintaining the problem is unsolved.

have not been resolved

Changes the structure to passive voice, emphasizing the lack of resolution.

defy solution

Uses a stronger verb to indicate that the problem is resistant to being solved.

present ongoing challenges

Shifts the focus from a single solution to multiple challenges that persist.

are open questions

Replaces the term 'unsolved' with a focus on the unanswered nature of questions.

are mysteries that persist

Emphasizes the mysterious and enduring nature of the unsolved issue.

are subjects of ongoing investigation

Highlights the active effort to find a solution or answer.

await clarification

Emphasizes that the issue needs further explanation or resolution.

FAQs

What does "are still unsolved" mean?

The phrase "are still unsolved" means that certain problems, questions, or mysteries have not yet been resolved or answered, despite efforts to do so. It implies that the issue has persisted over a period of time without a solution.

How can I use "are still unsolved" in a sentence?

You can use "are still unsolved" to describe various situations, such as: "Many of the cases remain "remain unresolved"", or "Despite numerous studies, the molecular mechanisms are "have not been resolved"".

What are some alternatives to "are still unsolved"?

Some alternatives to "are still unsolved" include "remain unresolved", "are yet to be solved", or "are pending resolution". The best alternative depends on the specific context and the nuance you want to convey.

Is it better to use "are still unsolved" or "remain unsolved"?

Both "are still unsolved" and "remain unsolved" are grammatically correct and convey a similar meaning. The choice between them often depends on personal preference or stylistic considerations. "Remain unsolved" might sound slightly more formal.