Indefatigable meaning

ĭndĭ-fătĭ-gə-bəl
Having or showing a capacity for persistent effort; not tiring or relenting.
adjective
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The definition of indefatigable is a person or something that has tireless persistence.

Someone who keeps trying and trying to learn a skill and who never gives up is an example of a person who would be described as indefatigable.

adjective
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That cannot be tired out; not yielding to fatigue; untiring.
adjective
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Extremely persistent and untiring.
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Origin of indefatigable

  • Obsolete French indéfatigable from Latin indēfatīgābilis in- not in–1 dēfatīgāre to tire out (dē- intensive pref. de–) (fatīgāre to weary)

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle French, from Latin indēfatīgābilis (“untiring”), from in- (“not”) + de- (“away”) + fatīgō (“I tire”).

    From Wiktionary