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
That’s come with a new set of challenges for the 24-year-old forward, whom the Knicks have prioritized on defense, primarily using the tireless Josh Hart, and, at times, their top wing stopper in OG Anunoby.
—
Peter Sblendorio, New York Daily News, 28 Apr. 2026
Elena Vilardell, technical and executive secretary of Ibermedia, received an industry tribute in recognition of her tireless efforts to foster collaboration across Ibero-American countries.
—Anna Marie De La Fuente, Variety, 26 Apr. 2026
Our tireless beat writer, Nick Harris, profiled all the new Cowboys.
—Jim Barnes, Fort Worth Star-Telegram, 26 Apr. 2026
King Charles' younger sister is known for her tireless drive for royal duty, often ranked among the royal family's hardest-working members by count of official engagements recorded in The Court Circular.
—Janine Henni, PEOPLE, 25 Apr. 2026
See All Example Sentences for tireless
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Peter Sblendorio, New York Daily News, 28 Apr. 2026
Elena Vilardell, technical and executive secretary of Ibermedia, received an industry tribute in recognition of her tireless efforts to foster collaboration across Ibero-American countries.
—Anna Marie De La Fuente, Variety, 26 Apr. 2026
Our tireless beat writer, Nick Harris, profiled all the new Cowboys.
—Jim Barnes, Fort Worth Star-Telegram, 26 Apr. 2026
King Charles' younger sister is known for her tireless drive for royal duty, often ranked among the royal family's hardest-working members by count of official engagements recorded in The Court Circular.
—Janine Henni, PEOPLE, 25 Apr. 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 1 May. 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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