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Synonyms

tirelessly

American  
[tahyuhr-lis-lee] / ˈtaɪər lɪs li /

adverb

  1. without becoming tired or weary and without slackening one’s effort.

    Compassion impels us to work tirelessly to ease the suffering of our fellow creatures.

Etymology

Origin of tirelessly

tireless ( def. ) + -ly

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.

Dr Gayatri Amirthalingam, a deputy director at the UKHSA, said her teams worked rapidly and tirelessly over the weekend and continued to do so.

From BBC • Mar. 19, 2026

Bukele, a savvy communicator, tirelessly promotes his country as the new bucket list destination on social media.

From Barron's • Feb. 24, 2026

"Apple faces fierce competition in every market where we operate, and we work tirelessly to create the best products, services and user experience," an Apple spokesperson said.

From BBC • Feb. 10, 2026

“Law enforcement is working tirelessly, around the clock, trying to bring her home, trying to find her,” she said.

From The Wall Street Journal • Feb. 9, 2026

Lyra rode a strong young bear, and Roger rode another, while Iorek paced tirelessly ahead and a squad armed with a fire hurler followed guarding the rear.

From "The Golden Compass" by Philip Pullman

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.