adjective
indefatigable
in-dih-FAT-ih-guh-bul/ˌɪndɪˈfætɪɡəbl/
Continuing with energy despite effort or difficulty
The indefatigable worker continues repairing the trail beside completed piles of stones.
Etymology
The pieces describe someone who cannot be completely worn out. This image of resistance to exhaustion underlies the word’s use for tireless persistence despite difficulty or sustained effort.
In context
he is an indefatigable researcher and has uncovered all kinds of really valuable information, painstakingly garnered from court records and graveyards records and all kinds of places.
More examples
- The indefatigable volunteers keep delivering meals despite the freezing weather.
- She remains an indefatigable advocate for safer working conditions.
- Even after repeated setbacks, the indefatigable researcher eagerly tries another approach.
Forms
indefatigable
indefatigably adverb — With continuing energy despite effort or difficulty.
Similar words
- tireless
- Stresses sustained energy without the same emphasis on obstacles.
- persistent
- Emphasizes continuing despite setbacks, not necessarily maintaining high energy.