indefatigable

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See also: Indefatigable

English

Etymology

From Middle French, from Latin indēfatīgābilis (untiring), from in- (not) + dēfatīgō (to tire out).

Pronunciation

Adjective

indefatigable (comparative more indefatigable, superlative most indefatigable)

  1. Extremely persistent and untiring.
    Synonyms: inexhaustible, relentless, tireless, unflagging, unsinkable, untiring, unwearying
    Antonym: (much less common) defatigable

Derived terms

Translations

See also