Words / C2

ind-i-FAT-ig-uh-bl/ˌɪndɪˈfætɪɡəbl/

Indefatigable means seemingly unable to tire; persistent in a formal, often admiring way: indefatigable campaigner, indefatigable energy. Tireless is everyday; indomitable (this batch) is unconquerable in spirit, not merely unflagging. Fatigue is tiredness. Do not use indefatigable as a reason to leave a post unfilled.

Meaning

Never giving up; seeming never to tire (formal).

Examples

• “An indefatigable intern still cannot be the whole night rota.”
• “Tireless is everyday. Indomitable is unconquerable (this batch). Fatigable is rare; fatigue is common. Admiration for stamina is not a staffing model. Two names on the rota beat one legend.”

Good to know

Tireless (formal). Everyday: tireless. Contrast: indomitable (cannot be defeated). Stamina ≠ a second post.

Near in meaning

tireless

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