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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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really cool

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "really cool" is grammatically correct and is commonly used in written English.
It can be used to describe something that is extremely impressive, interesting, or fashionable. Example: "The new designer handbag I bought is really cool. It has a unique design and is made with sustainable materials."

✓ Grammatically correct

News & Media

Wiki

Science

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

It was actually really cool.

News & Media

The New York Times

That was just really cool.

News & Media

The New York Times

She seems really cool.

News & Media

Huffington Post

Me: Sounds really cool.

News & Media

Huffington Post

It looks really cool too.

Really cool".

News & Media

The New York Times

"That was really cool, really cool.

It's really, really cool.

News & Media

Independent

That is really cool.

News & Media

The New York Times

"Really cool kid.

"Really cool vibe, actually".

Show more...

Expert writing Tips

Best practice

In formal writing, consider stronger or more precise adjectives like "remarkable", "impressive", or "exceptional" to convey a similar sentiment.

Common error

Avoid using "really cool" in academic papers, business reports, or formal presentations. It may come across as unprofessional or lacking in specificity. Opt for more sophisticated vocabulary.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

81%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "really cool" primarily functions as an adjectival phrase, modifying a noun to express strong approval or admiration. As confirmed by Ludwig AI, it is a common and grammatically correct way to describe something considered impressive or stylish.

Expression frequency: Very common

Frequent in

News & Media

40%

Wiki

35%

Science

25%

Less common in

Formal & Business

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "really cool" is a grammatically correct and very common adjectival phrase used to express strong approval or admiration. As Ludwig AI confirms, it is best suited for informal contexts like conversation or casual writing. While frequently found in News & Media, and Wiki sources, it is less appropriate for formal academic or professional settings. Consider using more precise alternatives like ""extremely impressive"" or ""remarkably fascinating"" when a more formal tone is desired.

FAQs

How can I use "really cool" in a sentence?

"Really cool" is generally used to describe something you find impressive, interesting, or enjoyable. For example, "That new movie was "really cool"!"

What are some alternatives to saying "really cool"?

Depending on the context, you can use alternatives like "extremely impressive", "incredibly stylish", or "remarkably fascinating".

Is it appropriate to use "really cool" in formal writing?

While grammatically correct, "really cool" is considered informal. It's generally better to use more formal alternatives like "genuinely amazing" or "truly remarkable" in academic or professional contexts.

What's the difference between "really cool" and "somewhat cool"?

"Really cool" expresses a strong positive sentiment, indicating genuine enthusiasm. "Somewhat cool" suggests a milder, less intense level of approval or interest.

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Source & Trust

81%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: