Dictionary.com
Thesaurus.com
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.

Cook "worked tirelessly to expose criminal wrongdoing and injustice, helping to drive important and lasting changes in the law," ITV said.

From BBC • Jun. 15, 2026

AI companies have been working tirelessly to stuff generative and agentic AI into every nook and cranny of our online lives.

From Salon • Jun. 10, 2026

“For months, many have worked tirelessly to return zero-for-zero tariff trade for whisky and bourbon,” said Mark Kent, CEO of the Scotch Whisky Association.

From The Wall Street Journal • Apr. 30, 2026

"Pakistan remains committed to serve as an honest and sincere facilitator - working tirelessly to advance durable peace and lasting stability in the region," Sharif wrote on X.

From Barron's • Apr. 26, 2026

Alatortsev and a small group of other masters and psychologists worked tirelessly for ten years attempting to “solve” the mystery of Fischer’s prowess, in addition to analyzing his personality and behavior.

From "Endgame" by Frank Brady

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "tirelessly" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com