tireless

adjective

tire·​less ˈtī(-ə)r-ləs How to pronounce tireless (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Smith was also an accomplished curator and a tireless connector of people. News Desk, Artforum, 30 Jan. 2025 In the realm of creativity, these agents could write books, design graphics or even compose music—acting as tireless collaborators for human creators. Michele Zanello, Rolling Stone, 28 Jan. 2025 Our nation owes these public servants a debt of gratitude for their tireless commitment to our country. Alexandra Hutzler, ABC News, 20 Jan. 2025 Ryan has a tireless motor and is a confident dribbler who can maze upfield to break a defensive structure at her will. Jeff Rueter, The Athletic, 16 Jan. 2025 See all Example Sentences for tireless 

Word History

First Known Use

1591, in the meaning defined above

Time Traveler
The first known use of tireless was in 1591

Dictionary Entries Near tireless

Cite this Entry

“Tireless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tireless. Accessed 6 Feb. 2025.

Kids Definition

tireless

adjective
tire·​less ˈtī(ə)r-ləs How to pronounce tireless (audio)
: seeming never to get tired
a tireless worker
tirelessly adverb

More from Merriam-Webster on tireless

Last Updated: - Updated example sentences
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