Origin of indefatigableMiddle French indéfatigable from Classical Latin indefatigabilis from in-, not + defatigare, to tire out, weary: see de- and fatigue
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.
Origin of indefatigableObsolete French indéfatigable from Latin indēfatīgābilis in- not ; see in- 1. dēfatīgāre to tire out ( dē- intensive pref. ; see de- . ) ( fatīgāre to weary )
(comparative more indefatigable, superlative most indefatigable)
- defatigable (much less common)
From Middle French, from Latin indēfatīgābilis (“untiring”), from in- (“not”) + de- (“away”) + fatīgō (“I tire”).
- Moreover Frederick, who had proved by his wars the importance which he attached to Silesia, was indefatigable in times of peace in his attempts to justify his usurpation.
- He had courage, a vivid sense of duty, an indefatigable love of work, and all the inquisitive zeal and inventive energy of a born reformer.
- The energies of the indefatigable parson knew no bounds.
- But through all situations of his life he preserved his equanimity, his keen interest in science, and his indefatigable zeal for the instruction of others.
- A few days later the indefatigable Sheridan won the last great victory of the war at Five Forks.