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.
As the co-founder of Harborside Health Center, one of the largest medical cannabis dispensaries in the U.S., DeAngelo has been a tireless advocate for cannabis legalization and social justice. Matt Rozo, The Mercury News, 2 Jan. 2025 Alexander-Arnold’s trademark passes down the line remain a prominent part of his game, frequently finding a midfielder pulling wide — often Curtis Jones or Dominik Szoboszlai — or delivering a searching ball for the tireless Mohamed Salah. Mark Carey, The Athletic, 22 Dec. 2024 Mia is also a tireless worker with an extremely busy life. Rebecca Loroff, Journal Sentinel, 16 Dec. 2024 Brad Simpson's brother, Barton, shared a brief message, thanking law enforcement for their tireless efforts to bring Suzanne Simpson home and acknowledged the significance of the charges filed against his brother. Amaris Encinas, USA TODAY, 8 Nov. 2024 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 18 Jan. 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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