indefatigable
adjective
in·de·fat·i·ga·ble
ˌin-di-ˈfa-ti-gə-bəl 
: incapable of being fatigued : untiring
an indefatigable worker
Synonyms
Examples of indefatigable in a Sentence
a person of indefatigable patience
an indefatigable laborer who can work from sunrise to sunset
Recent Examples on the Web
Conservatives must be indefatigable in preserving a spirit of appreciation for the sacrifices of our nation’s heroes.
—
John Hatzis, National Review, 13 Sep. 2024
That raised the stakes for the 1964-1965 New York fair — as Robert Moses, its indefatigable organizer well knew.
—Ruth D. Nelson / Made By History, TIME, 13 Sep. 2024
Slotkin, a prodigious fundraiser and the only Jewish member of Michigan’s congressional delegation, is also an indefatigable campaigner and leaves little to chance.
—Detroit Free Press, 6 Sep. 2024
Bad As Me album about the autumn of life that speaks to the 91-year-old country icon’s legendarily indefatigable spirit and boundless energy well into his six decade as a performer.
—Gil Kaufman, Billboard, 15 Aug. 2024
See all Example Sentences for indefatigable 
John Hatzis, National Review, 13 Sep. 2024
That raised the stakes for the 1964-1965 New York fair — as Robert Moses, its indefatigable organizer well knew.
—Ruth D. Nelson / Made By History, TIME, 13 Sep. 2024
Slotkin, a prodigious fundraiser and the only Jewish member of Michigan’s congressional delegation, is also an indefatigable campaigner and leaves little to chance.
—Detroit Free Press, 6 Sep. 2024
Bad As Me album about the autumn of life that speaks to the 91-year-old country icon’s legendarily indefatigable spirit and boundless energy well into his six decade as a performer.
—Gil Kaufman, Billboard, 15 Aug. 2024
See all Example Sentences for indefatigable
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'indefatigable.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near indefatigable
Cite this Entry
“Indefatigable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/indefatigable. Accessed 5 Oct. 2024.
Copy CitationKids Definition
indefatigable
adjective
in·de·fat·i·ga·ble
ˌin-di-ˈfat-i-gə-bəl
: capable of working a long time without tiring : tireless
an indefatigable teacher
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