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 Thanks to the tireless work of whistleblowers, journalists, and concerned citizens — the British public has given the only sane and responsible answer. The Editors, National Review, 14 Mar. 2024 The whole menu feels like a tireless attempt to surprise and delight with dishes like mushroom stroganoff ($32), Korean short rib pasta ($48) and whipped butternut squash ($19). The Indianapolis Star, 7 Mar. 2024 Calling him a connector with a tireless work ethic, Murray also praised El’Zabar’s ability to draw people in. Marcus J. Moore, New York Times, 5 Mar. 2024 Through her tireless efforts, Pastor Curry has sown seeds of hope and progress, ensuring her influence will be felt and celebrated long into the future. Hilary Tetenbaum, USA TODAY, 4 Mar. 2024 Thanks to the tireless work of the Rocky Mountain Elk Foundation and many state game and fish agencies, elk populations are starting to boom in eastern states like Kentucky and Pennsylvania. Jace Bauserman, Field & Stream, 22 Feb. 2024 What followed was an exhortation to eternal civic vigilance and tireless civic work. Lili Loofbourow, Washington Post, 13 Feb. 2024 These tireless machines could also: Aid in reforestation efforts, restoring delicate ecosystems and mitigating climate change with their dexterous tools guided by digital intelligence. Timothy Papandreou, Forbes, 27 Feb. 2024 His tireless efforts saved countless lives and helped ensure the completion of one of the most ambitious engineering endeavors in history. Thomas Bostick, Forbes, 19 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'tireless.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 29 Mar. 2024.

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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