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.
Dealing with an emotionally unavailable partner is a tireless obstacle to climb — and the First Lady of OVO vulnerably opens up about her own experience, as her stirring vocals capture what can be a helpless feeling. Christopher Claxton, Billboard, 31 Mar. 2025 The most prominent Twitch streamers rise to the top through a mixture of creativity, personality, and a tireless work ethic. Patricia Hernandez, Rolling Stone, 24 Mar. 2025 Ruth Lillian Barkley Apartments at Cathedral Housing Development and Alice Heyward Taylor Apartments pay tribute to their tireless advocacy in public housing initiatives. Ed Gaskin, Boston Herald, 23 Mar. 2025 His age, recent back-to-back bouts of cancer and ongoing radiotherapy complications notwithstanding, Book’s drive is so tireless that it’s become something of a reverential joke among many who interact with him. Max Klaver, Miami Herald, 20 Mar. 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 15 Apr. 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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