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
But Larry, a true cynic, was stuck in a different time, gagged and bound by a tireless insistence on creating art that subverted and satirized those same good old-fashioned family values.
—
Michael Cuby, Them., 24 Oct. 2025
Journalists should also be tireless readers.
—David Wingrave, Harpers Magazine, 24 Oct. 2025
In celebration of that breakthrough, and of Monroe’s tireless talents, here are all of her horror films so far, ranked from worst to best.
—Matthew Jackson, Vulture, 22 Oct. 2025
The city of San Francisco is getting safer, thanks to the tireless work of Mayor Daniel Lurie.
—Jim Cramer, CNBC, 19 Oct. 2025
See All Example Sentences for tireless
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Michael Cuby, Them., 24 Oct. 2025
Journalists should also be tireless readers.
—David Wingrave, Harpers Magazine, 24 Oct. 2025
In celebration of that breakthrough, and of Monroe’s tireless talents, here are all of her horror films so far, ranked from worst to best.
—Matthew Jackson, Vulture, 22 Oct. 2025
The city of San Francisco is getting safer, thanks to the tireless work of Mayor Daniel Lurie.
—Jim Cramer, CNBC, 19 Oct. 2025
See All Example Sentences for tireless
Cite this Entry
“Tireless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tireless. Accessed 29 Oct. 2025.
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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