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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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for an undefined time

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "for an undefined time" is grammatically correct and can be used in written English.
It is typically used to describe a situation or action that does not have a specific duration or end date. Example: I have been living in this city for an undefined time, as I do not have any specific plans to move elsewhere. Here, the speaker is indicating that they have been living in the city for an unspecified amount of time and do not have a set plan for how long they will continue to live there.

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

3 human-written examples

An Akzo Nobel spokesman, John de Munnik, said that the company would continue to receive royalty payments from Johnson & Johnson for an undefined time because it had helped Johnson & Johnson create the market for Risperdal in Europe, Argentina and Brazil.

News & Media

The New York Times

Norbet's message is in effect "Make Austria Great Again". He calls for closed borders in particular to Muslims, complains of the trade deals made with the EU just as Trump complains of the trade deals America has made and wants to stop all Muslims from entering US for an undefined time.

News & Media

HuffPost

Although G. lamblia trophozoites, cultured in modified PEHPS medium, provide lower yields than the ones obtained in TYI-S-33, the yields in modified PEHPS are sufficient to maintain G. lamblia strains in a stable and reliable culture for an undefined time.

Human-verified similar examples from authoritative sources

Similar Expressions

57 human-written examples

Positive descriptions of Arabs referred mainly to undefined situations, in an undefined time, either in the desert or in an undefined place, often in legends about the exotic East.

Again like an incubator, it provides space for an undefined amount of time.

News & Media

Forbes

As part of this effort, we are testing trends clearly marked as "promoted" for an undefined period of time," a Twitter representative tells us.

News & Media

TechCrunch

As part of this effort, we are testing trends clearly marked as "promoted" for an undefined period of time," a Twitter representative tells us.

News & Media

TechCrunch

And worst of all, they can last for an undefined period of time, providing little visibility into when the pain will end.

News & Media

TechCrunch

This loose body was in contact with the joint for an undefined period of time before it became embedded in the medial soft tissues.

They're there for an undefined period of time for no particular reason.

News & Media

Vice

After an emergency, our coach couldn't return to Boston for an undefined amount of time, and the recent weeks had been chaotic, to say the least.

News & Media

Huffington Post
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Expert writing Tips

Best practice

When using "for an undefined time", ensure that the context clearly indicates the reason for the lack of a defined time period. This prevents confusion and ensures the reader understands the uncertainty is intentional and relevant.

Common error

Avoid using "for an undefined time" when a reasonable estimate can be provided. Vague language can diminish credibility if specifics are available. If there are clues about the time frame, use qualifiers like "approximately" or "potentially until" to add clarity.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

82%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "for an undefined time" functions as an adverbial phrase, modifying a verb or clause by indicating the duration of an action or state. As evidenced by Ludwig, it specifies a period without a defined end.

Expression frequency: Rare

Frequent in

News & Media

33%

Science

33%

Academia

33%

Less common in

Formal & Business

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "for an undefined time" is a grammatically correct adverbial phrase used to indicate an uncertain duration. Ludwig AI confirms its acceptability in written English. While relatively rare, it appears in diverse contexts, including news, science, and academic writing. Alternatives like "for an uncertain period" or "for an indefinite duration" can provide similar meaning. Remember to use it when a specific time frame is genuinely unknown and cannot be estimated to enhance clarity and avoid ambiguity.

FAQs

How can I rephrase "for an undefined time" to sound more formal?

In formal contexts, consider alternatives such as "for an indefinite period" or "for an unspecified duration". These options maintain a professional tone while conveying the uncertainty of the time frame.

What's the difference between "for an undefined time" and "for the foreseeable future"?

"For an undefined time" simply indicates that the duration is unknown. "For the foreseeable future" implies the situation will continue as far as one can reasonably predict, suggesting a longer, though still indefinite, duration.

When is it appropriate to use "for an undefined time"?

Use "for an undefined time" when the exact duration is genuinely unknown and cannot be reasonably estimated. This is suitable for situations where future developments are unpredictable and have a direct impact on the time frame.

What are some common synonyms for "for an undefined time"?

Common synonyms include "for an uncertain period", "for an unspecified time", and "for an indefinite duration". The best choice depends on the specific context and the nuance you want to convey.

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Source & Trust

82%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Most frequent sentences: