tire·​less | \ ˈtī(-ə)r-ləs How to pronounce tireless (audio) \

Definition of tireless

: seemingly incapable of tiring : indefatigable a tireless worker

Other Words from tireless

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 Biggins said the losses of Nansen and Kaufusi might have deeper recruiting ramifications unless their replacements are equally tireless. Ben Bolch, Los Angeles Times, 14 Dec. 2021 This is due to the tireless work of our friends at @PHLRealJustice. refinery29.com, 3 June 2020 Rush Limbaugh: Thank you for your decades of tireless devotion to our country. Sanya Mansoor, Time, 5 Feb. 2020 The unusual moment came days after Limbaugh, 69, announced he had been diagnosed with late-stage lung cancer. ‘‘Rush Limbaugh, thank you for your decades of tireless devotion to our country,’’ Trump said. BostonGlobe.com, 5 Feb. 2020 Kobe is being remembered as a tireless advocate for girls in sports. NBC News, 25 Feb. 2020 Biliew, who picked up a college basketball offer from Iowa before entering high school, is a dynamic athlete and tireless defender. Richard Obert, azcentral, 2 May 2020 This pairing of short films sheds light on the tireless work of caregivers tasked with providing comfort and care to patients with incurable conditions. Freep.com, 20 Apr. 2020 To honor public health workers and researchers in the scientific community for their tireless work on the frontlines of the coronavirus pandemic, Google's landing page looks a bit different today. Anabel Pasarow, refinery29.com, 6 Apr. 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tireless.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of tireless

1591, in the meaning defined above

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Time Traveler for tireless

Time Traveler

The first known use of tireless was in 1591

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Dictionary Entries Near tireless

tire gage



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Cite this Entry

“Tireless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tireless. Accessed 21 May. 2022.

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More Definitions for tireless


tire·​less | \ ˈtīr-ləs How to pronounce tireless (audio) \

Kids Definition of tireless

: able to work or persist a long time without becoming tired

Other Words from tireless

tirelessly adverb

More from Merriam-Webster on tireless

Nglish: Translation of tireless for Spanish Speakers

Britannica English: Translation of tireless for Arabic Speakers


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