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indefatigable

Syllabification: (in·de·fat·i·ga·ble)
Translate indefatigable | into German | into Italian
Definition of indefatigable

adjective

  • (of a person or their efforts) persisting tirelessly:an indefatigable defender of human rights

Derivatives

indefatigability

noun

indefatigably

Pronunciation: /-blē/
adverb

Origin:

early 17th century: from French, or from Latin indefatigabilis, from in- 'not' + de- 'away, completely' + fatigare 'wear out'

indefatigable in other Oxford dictionaries

Definition of indefatigable in the British & World English dictionary
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