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Definitions
showing sustained enthusiastic action with unflagging vitality
Word origin
From Middle French, from Latin indēfatīgābilis (“untiring”), from in- (“not”) + dēfatīgō (“to tire out”).
Used in a sentence
“[...] But he was at the ſame Time an excellent Scholar, and moſt indefatigable in teaching the two Lads.”
“He was respected by all who knew him for his integrity and indefatigable attention to public business.”
“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.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
No curated clues for indefatigable yet.