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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.

His social media messaging "emotionally resonated" with his followers, granting him an "unparalleled organic reach", said Kovesdi, adding many supporters see him as a "hero, tirelessly fighting for them".

From Barron's • Apr. 12, 2026

The police are working "tirelessly" to raise standards and improve its culture in London, he said.

From BBC • Apr. 10, 2026

Colleagues told me Ford worked the case tirelessly.

From Slate • Apr. 6, 2026

She thanked the Academy "for even adding this category - and for the casting directors who fought tirelessly to make it happen despite everything in their way".

From BBC • Mar. 16, 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.