Not entirely sure

USAGE SUMMARY

The phrase "Not entirely sure" is correct and usable in written English.
You can use it when expressing uncertainty or doubt about a particular situation or answer. Example: "I'm not entirely sure if we have enough resources for the project, but I can check with the team."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

But I'm not entirely sure.

The New York Times

I am not entirely sure.

The Guardian

"I'm just not entirely sure.

The New York Times

"I'm not entirely sure why.

The New York Times

I'm not entirely sure what.

The New Yorker

I'm not entirely sure myself.

The Guardian - Books

Why, I'm not entirely sure.

The Guardian - Sport

I'm not entirely sure either.

The Guardian - Books

Though I'm not entirely sure why.

The New York Times - Magazine

I'm not entirely sure what that means.

The New Yorker

"But I'm not entirely sure I do".

The New Yorker

Expert writing Tips

Best practice

When using the phrase in writing, ensure that the surrounding sentences provide context for the uncertainty. Clearly state what you are unsure about to avoid ambiguity.

Common error

Avoid using "Not entirely sure" repeatedly in a single piece of writing. Vary your language by using synonyms or alternative expressions to maintain reader engagement and clarity.

Linguistic Context

The phrase "Not entirely sure" functions as a qualifier, modifying a statement to indicate a lack of complete certainty or confidence. Ludwig AI indicates its acceptability and correctness in written English.

Expression frequency: Very common

Frequent in

News & Media

100%

Less common in

Formal & Business

0%

Science

0%

Academia

0%

Ludwig's WRAP-UP

In summary, the phrase "Not entirely sure" is a very common and grammatically correct way to express uncertainty or a lack of complete confidence. Ludwig AI confirms its acceptability across various contexts, especially in news and media. While it is suitable for most situations, varying your language with alternatives like "not completely certain" or "somewhat unsure" can enhance your writing. When using this phrase, ensure you provide sufficient context to avoid ambiguity and overuse.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

Not completely certain

Indicates a lack of complete certainty, similar to "Not entirely sure" but with slightly different wording.

Somewhat unsure

Expresses a degree of uncertainty, suggesting a mild lack of confidence.

Not fully convinced

Focuses on a lack of complete conviction or belief.

A little uncertain

Emphasizes a slight degree of uncertainty.

Not quite positive

Indicates a lack of complete positiveness or assurance.

I have my doubts

Expresses personal reservations or uncertainties.

I'm a bit doubtful

Similar to 'I have my doubts', conveying personal doubt.

It's not clear to me

Highlights a lack of clarity or understanding.

I'm not sold on that

Expresses a lack of agreement or acceptance.

I'm skeptical

Conveys a general sense of doubt or disbelief.

FAQs

What does "Not entirely sure" mean?

The phrase "Not entirely sure" means that you are uncertain or lack complete confidence about something. It indicates a degree of doubt or a lack of full knowledge.

What are some alternatives to "Not entirely sure"?

You can use alternatives like "not completely certain", "somewhat unsure", or "not fully convinced" depending on the context.

Is it appropriate to use "Not entirely sure" in formal writing?

Yes, "Not entirely sure" is generally appropriate for formal writing, especially when you need to express a degree of uncertainty without being overly informal. However, consider the specific context and audience to determine if a more formal alternative might be preferable.

How can I use "Not entirely sure" in a sentence?

You can use "Not entirely sure" like this: "I'm not entirely sure if we have enough resources, but I will check." or "She is not entirely sure about the details of the agreement".