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The Complete Vocabulary Builder Workbook by BETTER WORDS R. B. Skinner
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Add 3,700 must-know words to your vocabulary.
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indefatigable

IPA:

How to pronounce indefatigable (audio)

Dictionary definition of indefatigable

Determined and persistent without ever tiring or admitting defeat.
"His indefatigable energy turned the failing business into a successful enterprise."

Detailed meaning of indefatigable

Someone who is indefatigable is often described as being tenacious, persistent, and determined. The word indefatigable comes from the Latin "indefatigabilis," which means "not easily wearied." It is often used to describe someone who is able to work or continue on with a task for a long period of time without becoming exhausted or discouraged.

Example sentences containing indefatigable

1. Her indefatigable spirit shines through in all her humanitarian work.
2. Despite the strenuous journey, the explorers remained indefatigable.
3. John, with his indefatigable curiosity, was always reading and learning.
4. The indefatigable child played happily in the park all day long.
5. Even in the face of defeat, the team's indefatigable determination was inspiring.
6. As an indefatigable advocate for social justice, he dedicated his life to helping others.

History and etymology of indefatigable

The adjective 'indefatigable' has an etymology that can be traced back to Latin. It is formed from the prefix 'in-,' which means 'not,' and 'defatigare,' which means 'to tire out' or 'to weary.' In its literal sense, 'indefatigable' describes someone or something that is not capable of being tired out or exhausted. This term underscores the idea of unwavering determination and persistence without ever admitting defeat or succumbing to weariness. 'Indefatigable' is often used to describe individuals who tirelessly pursue their goals, demonstrating an unflagging and unyielding spirit in the face of challenges and obstacles. The etymology of 'indefatigable' emphasizes the remarkable and tireless nature of such determination and perseverance.

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Further usage examples of indefatigable

1. The bird, indefatigable, kept trying to build its nest, despite the wind blowing it away.
2. The indefatigable researchers worked night and day until they found a cure.
3. She had an indefatigable appetite for adventure, always searching for new experiences.
4. The indefatigable orchestra played for hours, captivating the audience.
5. His indefatigable pursuit of perfection led to his mastery of the piano.
6. Their indefatigable patience while teaching others was admirable.
7. The indefatigable boxer relentlessly trained for his upcoming match.
8. Despite the grueling hours, her indefatigable work ethic was evident to all.
9. The mountaineer was indefatigable, climbing higher even as the weather worsened.
10. The indefatigable gardener meticulously tended to his plants each day.
11. The indefatigable doctor worked tirelessly to treat all the patients.
12. Her indefatigable optimism was a beacon of hope during the crisis.
13. He was an indefatigable leader, always the first to arrive and the last to leave.
14. Despite setbacks, her indefatigable spirit propelled her toward success.
15. The team's indefatigable effort led to an impressive comeback victory.
16. His indefatigable dedication to the project inspired the entire team.
17. The leader's indefatigable resolve motivated the group to persevere.
18. Her indefatigable pursuit of knowledge was truly admirable.
19. The marathon runner's indefatigable stamina allowed her to finish strong.
20. His indefatigable work ethic earned him the respect of his colleagues.
21. The scientist's indefatigable curiosity led to groundbreaking discoveries.
22. Despite challenges, their indefatigable optimism brightened the room.
23. The explorer's indefatigable spirit drove him to conquer uncharted lands.
24. The teacher's indefatigable support helped her students excel.

Suffix -able, GRE 6 (Graduate Record Examination), Excellence and Virtue, Obstacles and Hardships, Resilience and Resolve, Endeavor and Pursuit, Persistence and Perseverance, Energy and Vitality, Discipline and Resolve

assiduous,dogged,relentless,unrelenting

tenacious,tireless,unfaltering,unflagging,untiring

tireless, exhausted, fatigued, worn out

eb68db_cdf964f6dd7643deb18c6a9696882620.mp3

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