indefatigable🔊

Extremely persistent and untiring.

📑 Synonyms: inexhaustible relentless tireless unflagging unsinkable untiring unwearying

💬 Quotations

[...] But he was at the same Time an excellent Scholar, and most indefatigable in teaching the two Lads.

Henry Fielding, The History of Tom Jones, a Foundling

He was respected by all who knew him for his integrity and indefatigable attention to public business.

Mary Shelley, Frankenstein

All night long the Martians were hammering and stirring, sleepless, indefatigable, at work upon the machines they were making ready, and ever and again a puff of greenish-white smoke whirled up to the starlit sky.

H. G. Wells, The War of the Worlds