tireless
Americanadjective
adjective
Other Word Forms
Etymology
Origin of tireless
Explanation
Someone who's tireless seems to never run out of energy. A tireless student will stay up late to make sure her paper is perfect; a tired student will just go to sleep. Your tireless efforts might be just what your friend's campaign for student council president needs—you're energetic and enthusiastic, and you'll focus on the campaign unflaggingly. Another way to say tireless is indefatigable. Tireless etymologists have determined that both adjectives date from the 16th century.
Vocabulary lists containing tireless
"A Noiseless Patient Spider" by Walt Whitman
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Because of Mr. Terupt
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Pre-AP Theatre
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Tireless coach, announcer, supporter and promoter of numerous teams and sporting events around the Tacoma area.
From Seattle Times • Dec. 31, 2023
She racked up accolades: the Coty Award, the Pratt Institute Award, the CFDA’s Tireless Talent Award, several lifetime achievement prizes.
From New York Times • Feb. 13, 2015
Tireless campaigners for their son’s freedom, Bob and Jani Bergdahl thanked all who were behind the effort to retrieve him.
From Washington Times • Jun. 2, 2014
The British submarine HMS Tireless has also arrived in the southern Indian Ocean.
From BBC • Apr. 2, 2014
Tireless, fearless, half savage as the scout undoubtedly was, one fully his equal was now at his heels, actuated by grim, relentless purpose.
From Bob Hampton of Placer by Parrish, Randall
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
