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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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is uncertain

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "is uncertain" is correct and can be used in written English.
It is typically used to express doubt or ambiguity about something. Here is an example: "The outcome of the election is uncertain due to the tight race between the two candidates."

✓ Grammatically correct

News & Media

Encyclopedias

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

His timetable is uncertain.

News & Media

The New York Times

That limit is uncertain.

News & Media

The New York Times

(His logic is uncertain).

News & Media

The New York Times

His health is uncertain.

News & Media

The New Yorker

The outcome is uncertain.

What followed is uncertain.

News & Media

The Economist

Everything is uncertain.

News & Media

The New York Times

He is uncertain himself.

News & Media

The New Yorker

His status is uncertain.

The world is uncertain.

News & Media

Independent

Its future is uncertain.

News & Media

The Economist
Show more...

Expert writing Tips

Best practice

Use "is uncertain" to express doubt or ambiguity when the outcome or status of something is not yet known or predictable. For example, "The future of the project is uncertain due to budget cuts."

Common error

While "is uncertain" is widely acceptable, consider stronger alternatives like "remains unknown" or "is indeterminate" in highly formal or scientific writing to convey a more precise degree of uncertainty.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

87%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "is uncertain" primarily functions as a predicative adjective. Ludwig AI confirms its correct usage in English, where it attributes a state of uncertainty to a subject, indicating that something is not known or determined. The examples from Ludwig illustrate its role in expressing doubt or ambiguity.

Expression frequency: Very common

Frequent in

News & Media

64%

Encyclopedias

12%

Wiki

9%

Less common in

Science

9%

Formal & Business

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "is uncertain" serves as a versatile tool for expressing doubt or ambiguity. Ludwig AI affirms its grammatical correctness and widespread use. Appearing most frequently in News & Media, it maintains a neutral register suitable for various contexts. When using "is uncertain", consider stronger alternatives in formal writing and be mindful of the subtle differences between similar phrases like "is doubtful". This analysis should provide a deeper understanding of how to effectively incorporate "is uncertain" into your writing.

FAQs

How can I use "is uncertain" in a sentence?

You can use "is uncertain" to describe situations where the outcome or status is not yet known. For example: "The success of the new policy /s/is+uncertain." or "Whether they will attend the meeting /s/is+uncertain."

What are some alternatives to "is uncertain"?

Alternatives include /s/is+questionable, /s/is+not+definite, or /s/remains+unresolved. The best choice depends on the specific nuance you wish to convey.

Is it correct to say "is uncertain about"?

While "is uncertain" is often used alone, using "is uncertain about" is grammatically correct when referring to someone's feelings or knowledge about a specific topic. For example: "He /s/is+uncertain+about the details of the agreement."

What's the difference between "is uncertain" and "is doubtful"?

"Is uncertain" generally indicates a lack of predictability or knowledge. "Is doubtful" implies a stronger degree of disbelief or skepticism. For example, "The weather forecast /s/is+uncertain" suggests unpredictability, while "Her chances of winning /s/are+doubtful" indicates a low probability of success.

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Source & Trust

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Authority and reliability

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Real-world application tested

Most frequent sentences: