tireless
adjective
tire·less
ˈtī(-ə)r-ləs 
: 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
Through her tireless efforts, Nayelisse supported the creation of over 40 civic engagement programs in the fall semester alone, directly resulting in nearly 100 new voter registrations.
—
Olivia Antigua, Forbes.com, 9 Apr. 2025
The decline and eventual abolition of slavery has been portrayed as the result of tireless activism and moral persuasion by early Quaker advocates like Benjamin Lay who considered slavery one of the worst sins.
—Austin Choi-Fitzpatrick, The Conversation, 4 Apr. 2025
The Governors greatly appreciate his enduring leadership and his tireless efforts to modernize the Postal Service and reverse decades of neglect.
—Daniel R. Depetris, Newsweek, 25 Mar. 2025
This was widely expected to happen; the first Trump administration was tireless in its attempts to roll back vehicle pollution controls.
—Ars Technica, 13 Mar. 2025
See All Example Sentences for tireless
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Olivia Antigua, Forbes.com, 9 Apr. 2025
The decline and eventual abolition of slavery has been portrayed as the result of tireless activism and moral persuasion by early Quaker advocates like Benjamin Lay who considered slavery one of the worst sins.
—Austin Choi-Fitzpatrick, The Conversation, 4 Apr. 2025
The Governors greatly appreciate his enduring leadership and his tireless efforts to modernize the Postal Service and reverse decades of neglect.
—Daniel R. Depetris, Newsweek, 25 Mar. 2025
This was widely expected to happen; the first Trump administration was tireless in its attempts to roll back vehicle pollution controls.
—Ars Technica, 13 Mar. 2025
See All Example Sentences for tireless
Cite this Entry
“Tireless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tireless. Accessed 19 Apr. 2025.
Copy CitationKids Definition
tireless
adjective
tire·less
ˈtī(ə)r-ləs
: seeming never to get tired
a tireless worker
tirelessly
adverb
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