tireless
adjective
tire·less
ˈtī(-ə)r-ləs 
: seemingly incapable of tiring : indefatigable
a tireless worker
tirelessly
adverb
tirelessness
noun
Examples of tireless in a Sentence
She has been a tireless advocate for reform.
a tireless advocate for human rights
Recent Examples on the Web
For human crews, this transformation removes them from hazardous sparks and toxic fumes, shifting their roles from manual laborers to supervisors of a faster, tireless robotic workforce.
—
Mrigakshi Dixit, Interesting Engineering, 15 June 2026
No stone has been left unturned in the story thanks to Al Zaabi’s astounding eye for detail along with tireless work from him and his team.
—Caroline Reid, Forbes.com, 13 June 2026
From playing for his teammates and father, to a tireless work ethic, the 5-foot-5 Kim delivers powerful drives to complement his short game.
—Dan Albano, Oc Register, 12 June 2026
Fast, creative as a dribbler, a passer and a crosser, tireless, selfless, effective on both sides of the pitch and a threat to score from anywhere inside 30 yards.
—Liam Twomey, New York Times, 11 June 2026
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Mrigakshi Dixit, Interesting Engineering, 15 June 2026
No stone has been left unturned in the story thanks to Al Zaabi’s astounding eye for detail along with tireless work from him and his team.
—Caroline Reid, Forbes.com, 13 June 2026
From playing for his teammates and father, to a tireless work ethic, the 5-foot-5 Kim delivers powerful drives to complement his short game.
—Dan Albano, Oc Register, 12 June 2026
Fast, creative as a dribbler, a passer and a crosser, tireless, selfless, effective on both sides of the pitch and a threat to score from anywhere inside 30 yards.
—Liam Twomey, New York Times, 11 June 2026
See All Example Sentences for tireless
Cite this Entry
“Tireless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tireless. Accessed 17 Jun. 2026.
Copy CitationKids Definition
tireless
adjective
tire·less
ˈtī(ə)r-ləs
: seeming never to get tired
a tireless worker
tirelessly
adverb
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