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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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indefatigable

Grammar usage guide and real-world examples

USAGE SUMMARY

"indefatigable" is a correct and usable word in written English.
It can be used to describe an individual who is tireless, energetic, and shows great perseverance and determination. Example sentence: Joe demonstrated an indefatigable spirit in pursuit of his goals.

✓ Grammatically correct

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

We glimpse Iran's cultural divide from the other side, too, when Bahari's devoted and indefatigable mother, visiting the prison, vents her anger on an eavesdropping guard, who is obviously from a religious family: "Do you have any children?

News & Media

The Guardian

The project is headed by the indefatigable husband-and-wife team of John and Terese Hart, who have made Congo their home for 40 years.

News & Media

The Guardian

Community health workers like Joyce who are seemingly indefatigable are oiling the cogs of weary health systems across Africa.

News & Media

The Guardian

Former BBC journalist Barry Turley has been brought in to to head a large press operation, while the indefatigable West Belfast assembly member Alex Attwood has been elected party chairman.

News & Media

The Guardian

In effect, the indefatigable Peppiatt, who claims to be a "recovering tabloid hack", has transformed his successful Edinburgh fringe stage show on to film, but with a great deal of additional material.

News & Media

The Guardian

Onwards, and amid the attention paid to Jermain Defoe's goal exploits last week, most people were caught by the able play of the supporting cast — and not only the indefatigable Michael Bradley.

He tells me his hero, as an artist, was Studs Terkel, the indefatigable oral historian, whom he met once in Chicago.

She was indefatigable, which made her abrupt exit even harder to take.The network effect of social media overwhelmed her family and friends.

News & Media

The Economist

In August 1992, after much shuttling among the provinces, the indefatigable Mr Mulroney convened another conference this time including the leaders of Canada's aboriginal peoples in Charlottetown, the historic "cradle of Confederation" in Prince Edward Island.

News & Media

The Economist

"There is not a bank in Warsaw which can satisfactorily cope with 200 bank transfers a day," complains the indefatigable Mr Urban of Thomson Polkolor.

News & Media

The Economist

Above all, his indefatigable energy served as a tonic to an institution that had been in the doldrums for some time.But all this came at a cost which Mr Wolfensohn's book ignores.

News & Media

The Economist
Show more...

Expert writing Tips

Best practice

Use "indefatigable" to describe individuals or groups who consistently demonstrate unwavering energy and commitment to a task or cause. This word adds a layer of admiration and respect for their persistence.

Common error

While "indefatigable" is a powerful word, avoid using it in casual conversations or informal writing. Its formal tone might sound unnatural in everyday contexts; consider simpler synonyms like "tireless" or "energetic" for a more appropriate fit.

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

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The primary grammatical function of "indefatigable" is as an adjective, modifying nouns to describe someone or something possessing tireless and persistent qualities. As Ludwig AI explains, it describes individuals with great perseverance and determination.

Expression frequency: Very common

Frequent in

News & Media

78%

Encyclopedias

15%

Science

7%

Less common in

Formal & Business

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

The adjective "indefatigable" is a powerful descriptor used to express admiration for unwavering energy and commitment. As Ludwig AI confirms, it accurately conveys tireless persistence. It's commonly found in formal contexts like news reporting and academic writing. Synonyms include "tireless" and "unflagging", but each carries subtle nuances. While appropriate for formal settings, it is less suitable for casual conversation. Overall, understanding its formal tone and subtle differences from synonyms is key to effective use.

FAQs

How can I use "indefatigable" in a sentence?

You can use "indefatigable" to describe someone who is tireless and persistent in their efforts. For example, "The "indefatigable researcher" dedicated years to the project".

What are some synonyms for "indefatigable"?

Synonyms for "indefatigable" include "tireless", "unflagging", and "unwearying". These words all describe someone who does not easily give up or get tired.

Is it appropriate to use "indefatigable" in a formal setting?

Yes, "indefatigable" is well-suited for formal writing and speech. It conveys a strong sense of admiration for someone's persistent efforts and is often used in professional or academic contexts.

What is the difference between "indefatigable" and "determined"?

"Indefatigable" emphasizes the ability to continue tirelessly, while "determined" highlights a firm decision and commitment to achieve a goal. Someone can be determined without necessarily being indefatigable, and vice versa.

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Source & Trust

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Most frequent sentences: