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Indefatigable: meaning, example and synonyms

Indefatigableadj. Persisting tirelessly; incapable of being worn out.

Flashcard for Indefatigable (adjective): persisting tirelessly; incapable of being worn out. Example: The indefatigable archivist spent eleven years cataloguing the monastery's crumbling manuscripts, often working late into the night by lamplight. Synonyms: tireless, untiring, relentless, unflagging. Antonyms: lazy, weary, flagging, exhausted. Memory tip: in (not) + de-FATIGUE-able: fatigue can never catch this person. Illustration: a determined woman in a cardigan at a long wooden table piled high with old leather-bound books, carefully cataloguing them by lamplight late at night.

Example

The indefatigable archivist spent eleven years cataloguing the monastery's crumbling manuscripts, often working late into the night by lamplight.

Part of speech
adjective
Synonyms
tireless, untiring, relentless, unflagging
Antonyms
lazy, weary, flagging, exhausted
Memory tip
in (not) + de-FATIGUE-able: fatigue can never catch this person.

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Check yourself: Indefatigable in context

Pick the word that best completes each text.

Question 1

The ______ volunteers worked through the night filling sandbags, pausing only briefly for coffee as the river continued to rise.

Question 2

Even in her eighties, the botanist remained ______, hiking steep trails each morning to record the flowering of rare alpine plants.

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