completely certain that

USAGE SUMMARY

The phrase "completely certain that" is correct and usable in written English.
You can use it when expressing absolute confidence or assurance about a particular statement or belief. Example: "I am completely certain that we will meet our project deadline."

✓ Grammatically correct

News & Media

Science

Wiki

Human-verified examples from authoritative sources

Exact Expressions

31 human-written examples

Rejecting the denial, Vice President Francisco Santos said the government "is completely certain that it was the FARC".

The New York Times

But even if we were able to be completely certain that all death row inmates were guilty, we should still oppose the death penalty.

The Guardian - Opinion

"I was absolutely sure, completely certain, that we would be back," Mr. Chavez said in a speech to his jubilant supporters.

The New York Times

He said: "We are still not completely certain that this is Eadgyth, although all the scientific evidence points to this interpretation.

The Guardian

It then ran a series of checks, and after 16½ minutes was completely certain that conditions were right for a tsunami to form.

The Economist

While he was at it, Mr. Murray said he was confident — but not completely certain — that a cat's claws would not harm an iPad's screen.

The New York Times - Tech

Human-verified similar examples from authoritative sources

Similar Expressions

29 human-written examples

"We weren't completely certain at the time that it was authentic.

Los Angeles Times

He was not completely certain at the time, he claims, that the money they were being asked to hand over was for the damage they had caused through their drunken antics.

Huffington Post

The one thing that's completely certain is that it's already a month after the season was supposed to start and there's still no hockey happening.

Vice

Never plug in and turn on your machine until you are certain that is completely dry.

WikiHow

I am used to choreography, moral absolutes and a crowd that is completely certain about everything.

The Guardian

Expert writing Tips

Best practice

Use "completely certain that" when you want to express a very strong degree of confidence in a statement. Ensure that the context supports such a strong assertion.

Common error

Avoid using "completely certain that" when the evidence is not conclusive. Overstating your confidence can undermine your credibility if the statement proves to be false.

Linguistic Context

Completely certain that functions as a phrase to express a very strong degree of confidence or assurance. Ludwig AI confirms its proper use in various contexts, indicating a high level of certainty about a particular fact or belief.

Expression frequency: Common

Frequent in

News & Media

50%

Science

31%

Wiki

19%

Less common in

Formal & Business

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

Completely certain that is a phrase used to express a very high degree of confidence or assurance. Ludwig AI confirms its validity and usability in written English. It is most commonly found in news, media, scientific and Wiki contexts. When using the phrase, be mindful of the potential to overstate your confidence if the evidence is not fully conclusive. Alternatives like "absolutely sure that" or "entirely convinced that" can be used for similar effect. Always ensure the context warrants such a strong expression of certainty.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

absolutely sure that

Emphasizes certainty with a stronger adjective.

entirely convinced that

Focuses on the state of being convinced, rather than just certain.

positive that

A more casual way to express certainty.

without a doubt that

Highlights the absence of any doubt.

fully confident that

Similar to "completely certain that", emphasizing confidence.

definitely sure that

Uses "definitely" to strengthen the feeling of certainty.

firmly believe that

Indicates a strong belief, implying certainty.

certain beyond any doubt that

Adds emphasis to the certainty, highlighting lack of doubt.

assured that

A more formal and concise way to express certainty.

unequivocally certain that

Strongly asserts certainty, leaving no room for ambiguity.

FAQs

How can I use "completely certain that" in a sentence?

You can use "completely certain that" to express a very strong conviction, such as, "I am completely certain that we will succeed."

What phrases are similar to "completely certain that"?

Alternatives include "absolutely sure that", "entirely convinced that", or "positive that".

Is it better to say "completely certain that" or "absolutely certain that"?

Both "completely certain that" and "absolutely certain that" are correct and express a high degree of certainty. The choice often depends on personal preference or stylistic considerations.

When should I avoid using "completely certain that"?

Avoid using "completely certain that" when you have doubts or limited evidence to support your claim. In such cases, softer phrases like "fairly certain" or "reasonably sure" may be more appropriate.