indefatigable
adjective
in·de·fat·i·ga·ble
ˌin-di-ˈfa-ti-gə-bəl 
: incapable of being fatigued : untiring
an indefatigable worker
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
Credit her 24/7 exercise regimen of downing cocktails and dishing dirt, or chalk it up to a hopeful striver’s indefatigable inner spirit.
—
Ben Travers, IndieWire, 12 Nov. 2025
Hands-down one of the most disgusting movies ever made (a compliment), the film finds the indefatigable slasher, who was decapitated at the end of Terrifier 2, reattaching his head and commencing his ritual slaughters.
—Declan Gallagher, Entertainment Weekly, 31 Oct. 2025
This year, the indefatigable founder and principal designer of his eponymous brand marks 40 years in the business at a time when his reimagined vision for preppy is resonating with both his loyal fans and a new crop of Gen Z consumers.
—Katie Abel, Footwear News, 23 Oct. 2025
In 2019, Calvey—one of the most successful American investors in Russia and an indefatigable promoter of doing business in the country—was arrested by the FSB, Russia’s most powerful security agency, on charges of large-scale fraud.
—Foreign Affairs, 21 Oct. 2025
See All Example Sentences for indefatigable
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Ben Travers, IndieWire, 12 Nov. 2025
Hands-down one of the most disgusting movies ever made (a compliment), the film finds the indefatigable slasher, who was decapitated at the end of Terrifier 2, reattaching his head and commencing his ritual slaughters.
—Declan Gallagher, Entertainment Weekly, 31 Oct. 2025
This year, the indefatigable founder and principal designer of his eponymous brand marks 40 years in the business at a time when his reimagined vision for preppy is resonating with both his loyal fans and a new crop of Gen Z consumers.
—Katie Abel, Footwear News, 23 Oct. 2025
In 2019, Calvey—one of the most successful American investors in Russia and an indefatigable promoter of doing business in the country—was arrested by the FSB, Russia’s most powerful security agency, on charges of large-scale fraud.
—Foreign Affairs, 21 Oct. 2025
See All Example Sentences for indefatigable
Cite this Entry
“Indefatigable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/indefatigable. Accessed 18 Nov. 2025.
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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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