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.
There, Killings brushed shoulders with some of hip-hop’s most venerable legends, including Tupac Shakur and Eazy-E, leaving an indelible mark with his contagious personality and tireless hustle. Carl Lamarre, Billboard, 19 May 2025 The seemingly tireless France international has largely held his own against talented wingers but his aggression has led to him leaving space in behind that opponents have exploited. Anantaajith Raghuraman, New York Times, 16 May 2025 He will always be remembered for his manifest humility, simplicity of life, and tireless love for the poor. Daniel Foster, National Review, 15 May 2025 By serving as a tireless digital co-worker, capable of independently managing and executing financial workflows, processes and activities, agentic AI is poised to completely revolutionize all facets of finance operations. Karen Abramson, Forbes.com, 12 May 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

Browse Nearby Words

Cite this Entry

“Tireless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tireless. Accessed 23 May. 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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