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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.

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

From Barron's • Feb. 24, 2026

Since then, Budig has labored tirelessly to stoke enthusiasm for Summers’ book among her Inky Phoenix community members.

From Los Angeles Times • Feb. 18, 2026

"I have worked tirelessly for 25 years to help the Lawrence family get justice for their son," Wright, a veteran Daily Mail staffer, responded.

From BBC • Feb. 17, 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

Farther away, in all four corners of the compass, flights of spy-angels cruised tirelessly, keeping watch.

From "The Amber Spyglass" 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.