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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
be utterly sure of
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "be utterly sure of" is correct and usable in written English.
You can use it when expressing a strong conviction or certainty about something. Example: "Before making a decision, you must be utterly sure of your choice."
✓ Grammatically correct
News & Media
Alternative expressions(5)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
1 human-written examples
You need to clock up a certain number of flying hours to be let up there on your own, and you need to be utterly sure of your aircraft, to know that there are no defects, no wear and tear, that it is in as perfect nick as possible.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
He was utterly sure of himself, there was no room for doubt: what he was saying was right.
News & Media
Tim Sherwood continues to lob the grenades with the abandon of a man who is utterly sure of himself and sure that he has nothing to lose.
News & Media
Now dad's gone, no one can be utterly sure that the curse of the Bancrofts won't eventually point its moving finger at the Times.
News & Media
This may or may not be true doubters point to Mr McCain's sizzling temper, that bellicosity and the fact that a man of 72 cannot be utterly sure he will be sprightly and alert in four years' time.
News & Media
Real tolerance means enduring someone you are utterly sure is wrong.
News & Media
Talking to The Observer,he is utterly sure that the transport link will be ready.
News & Media
You could be utterly ignorant of Lydia Davis's personal circumstances and still be pretty sure, on the evidence of the stories, that her parents died in the past ten years or so.
News & Media
It would be utterly out of character.
News & Media
That now under consideration he is sure, must be utterly unattainable.
Academia
"She was poised and elegant, charming but forceful — and utterly sure of herself".
News & Media
Expert writing Tips
Best practice
When using "be utterly sure of", ensure that you have a solid foundation of evidence or experience to support your certainty. This adds credibility to your statement.
Common error
Avoid using "be utterly sure of" when you only have a hunch or limited information. Overstating your certainty can undermine your credibility if proven wrong.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "be utterly sure of" functions as an adjective phrase followed by a preposition, modifying a noun or pronoun. It expresses a state of complete certainty or confidence. As Ludwig AI confirms, this expression is grammatically correct and usable.
Frequent in
News & Media
33%
Science
33%
Formal & Business
33%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "be utterly sure of" is a grammatically sound and usable expression that conveys a high degree of confidence or certainty. Ludwig AI confirms its correctness. While not exceedingly common, it appears in various reputable sources such as The Guardian and The New Yorker. Related phrases include "be completely certain of" and "be absolutely confident in". When using this phrase, ensure you have a solid basis for your certainty to maintain credibility. Be cautious not to overstate your assurance without sufficient evidence. It serves to emphasize conviction in both formal and informal contexts.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
be completely certain of
Replaces "utterly sure" with "completely certain", indicating a strong degree of confidence.
be absolutely confident in
Uses "absolutely confident" instead of "utterly sure", expressing strong assurance.
have no doubt about
Shifts the focus to the absence of doubt, implying certainty.
be entirely convinced of
Emphasizes the state of being fully persuaded.
be positive about
Conveys a sense of certainty or assurance.
be dead certain about
Uses a more emphatic expression to convey absolute certainty.
be fully persuaded of
Highlights a state of complete belief.
be unequivocally sure of
Adds emphasis through the use of "unequivocally".
have complete faith in
Shifts the focus to trust and belief, suggesting strong confidence.
be firmly convinced of
Emphasizes the strength of the conviction.
FAQs
How can I use "be utterly sure of" in a sentence?
You can use "be utterly sure of" to express a strong conviction or certainty about something. For example, "You need to "be utterly sure of" your aircraft before flying it."
What phrases are similar to "be utterly sure of"?
Similar phrases include "be completely certain of", "be absolutely confident in", and "have no doubt about".
Is it more formal to say "be utterly sure of" or "be completely sure of"?
"Be utterly sure of" and "be completely sure of" are both suitable for formal contexts. However, "utterly" might lend a slightly stronger emphasis than "completely".
When is it appropriate to use "be utterly sure of"?
Use "be utterly sure of" when you want to convey a strong sense of conviction based on thorough knowledge or experience. It is suitable in situations where certainty is crucial.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested