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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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most difficult

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "most difficult" is correct and usable in written English.
You can use it whenever you want to describe something as being the most challenging or difficult. For example, you can say "This math problem was the most difficult one I've seen all year."

✓ Grammatically correct

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

The most difficult decision.

Dinner is the most difficult.

News & Media

Independent

Ms. Minor's most difficult task?

News & Media

The New York Times

The most difficult opponent?

What was most difficult?

News & Media

The New York Times

"It's the most difficult to navigate.

News & Media

Independent

He has the most difficult task.

News & Media

The New York Times

"That is the most difficult aspect.

News & Media

Independent

It is the most difficult to achieve.

News & Media

The Economist

Which group was most difficult to reach?

News & Media

The New York Times

The spin option is the most difficult.

News & Media

Independent
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Expert writing Tips

Best practice

When using "most difficult", ensure the context clearly defines what is being compared. For example, "This is the most difficult chapter in the book."

Common error

Avoid using "most difficult" when only two options are present. Instead, use the comparative form "more difficult".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

88%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "most difficult" functions as a superlative adjective phrase, modifying a noun to indicate the highest degree of difficulty. Ludwig AI confirms its grammatical correctness and common usage.

Expression frequency: Very common

Frequent in

News & Media

57%

Academia

21%

Wiki

7%

Less common in

Science

5%

Formal & Business

5%

Encyclopedias

0%

Ludwig's WRAP-UP

In summary, "most difficult" is a grammatically sound and frequently used phrase to denote the highest degree of difficulty. Ludwig AI's analysis confirms its correctness and wide applicability, particularly in News & Media and Academia. While synonyms like "hardest" or "most challenging" can be used, it's important to use "more difficult" when comparing only two items. By avoiding common errors and understanding its register, you can effectively use "most difficult" in your writing.

FAQs

How can I use "most difficult" in a sentence?

You can use "most difficult" to describe something that presents the greatest challenge compared to others. For instance, "Climbing Mount Everest is the most difficult feat imaginable."

What are some alternatives to using "most difficult"?

Alternatives include "hardest", "toughest", or "most challenging" depending on the context.

Is it correct to say "the difficultest" instead of "most difficult"?

No, "difficultest" is not standard English. The correct superlative form of "difficult" is "most difficult".

What's the difference between "difficult" and "most difficult"?

"Difficult" describes something that requires effort, while "most difficult" describes something that requires the greatest effort compared to all others in its group.

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Source & Trust

88%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences: