not established

USAGE SUMMARY

The phrase "not established" is correct and usable in written English.
You can use this phrase when you want to indicate that something has not been proven or accepted. For example, "The cause of the illness has not yet been established."

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Have we not established that, about the Establishment?

Huffington Post

Facts are not established.

Independent

Past reform efforts have not established control.

The New York Times

A trend is not established yet".

The New York Times

Investigators have not established a motive in the shooting.

The New York Times

Not established as a business; writers have paid employment elsewhere.

The Guardian

I'm not established in this one-day side yet".

The Guardian - Sport

The International Society of Sport Psychology was not established until 1965.

Encyclopedia Britannica

In some cases the cause is not established.

Encyclopedia Britannica

It was not established by the citizens themselves".

The New York Times

"We have not established a clear or consistent path for courts to follow," Justice O'Connor said.

The New York Times

Expert writing Tips

Best practice

Use "not established" to indicate that something lacks sufficient evidence or validation. It's useful in formal and academic writing.

Common error

While "not established" is often used in the passive voice, consider rephrasing to an active construction when appropriate for clearer, more direct writing.

Linguistic Context

The phrase "not established" functions as a postpositive adjective phrase, typically modifying a noun or clause to indicate a lack of proof, confirmation, or formal recognition. Ludwig AI confirms its appropriate usage in diverse contexts.

Expression frequency: Very common

Frequent in

Science

49%

News & Media

36%

Encyclopedias

4%

Less common in

Formal & Business

0%

Reference

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, the phrase "not established" is a common and grammatically sound way to express a lack of proof or validation. Ludwig AI indicates that it is widely used across various domains, particularly in science, news, and encyclopedic contexts. While appropriate for formal writing, remember to consider alternative phrasing to avoid overuse of the passive voice. When writing, ensure that you use the most appropriate alternative based on the context, such as ""not proven"" or ""not confirmed"".

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

not proven

Focuses specifically on the lack of evidentiary support.

not confirmed

Implies a lack of validation or corroboration.

not validated

Emphasizes the absence of official or scientific approval.

not verified

Highlights the lack of an accuracy check.

not demonstrated

Stresses the absence of a clear exhibition or proof.

not determined

Indicates that something is still in the process of being found out.

not ascertained

Implies that something is not yet known with certainty.

not formalized

Suggests the absence of an official or structured format.

not instituted

Emphasizes that something has not been formally set up or started.

not implemented

Focuses on the lack of practical application or execution.

FAQs

How can I use "not established" in a sentence?

You can use "not established" to indicate that something hasn't been proven or confirmed. For example, "The link between the two events is "not established"."

What are some alternatives to "not established"?

Alternatives include "not proven", "not confirmed", or "not validated". Choose the alternative that best fits the context.

Is "not established" formal or informal?

"Not established" is generally considered a neutral to formal phrase, suitable for academic, professional, and news contexts.

Which is correct, "not established" or "unestablished"?

"Not established" is the correct and more common phrasing. "Unestablished" is rarely used and can sound awkward.