indefatigable

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.

But an indefatigable Volkanovski's agility and relentless striking eventually wore down his flagging challenger, who was unable to land a knockout in the final round.

From Barron's • Feb. 1, 2026

That’s appropriate, given that this is the 20th anniversary of Beth Morrison Projects, whose principal is the pioneering co-founder and now sole producer of Prototype, and an indefatigable champion of new, unconventional operas.

From The Wall Street Journal • Jan. 12, 2026

Underlings have long marveled at his indefatigable work ethic.

From Los Angeles Times • Oct. 30, 2025

It also said he was "indefatigable to the end" and "driven by relentless curiosity and a deep attention to the present and to people".

From BBC • Sep. 4, 2025

My father’s care and attentions were indefatigable, but he did not know the origin of my sufferings and sought erroneous methods to remedy the incurable ill.

From "Frankenstein" by Mary Shelley