Indefatigable
What it means
Able to sustain determined effort without appearing to tire.
Reach for it when honoring unusually durable energy devoted to a demanding purpose
The indefatigable organizer visited every outlying village before the vote.
Words to choose between 6
| everyday | |
|---|---|
| warm | |
| professional | |
| formal |
|
| literary |
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everyday
Fits when plain praise for sustained effort is wanted
Careful Tireless is common hyperbole and may feel less distinguished.
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warm
Fits when visible liveliness matters more than long duration
Careful Energetic may describe a brief burst rather than enduring work.
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professional
relentless
Fits when the effort proceeds without pause toward a goal
Careful Relentless can feel oppressive when the persistence affects other people.
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professional
Fits when persistence despite obstacles is the defining strength
Careful Tenacious concerns refusal to give up, not resistance to fatigue.
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formal
Fits when continued energy should be stated without extra flourish
Careful Untiring describes endurance but not the vigor implied by indefatigable.
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literary
Fits when support or effort never loses intensity
Careful Unflagging fits constancy but sounds less natural for physical activity.
Opposites 3
- weary
- fatigable
- listless
Common phrases 3
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indefatigable energy
Her indefatigable energy carried the survey through six wet weeks.
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indefatigable campaigner
An indefatigable campaigner kept the bridge issue before the council.
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indefatigable spirit
His indefatigable spirit lifted the crew after each setback.
Definitions and examples are written for this site. How words are chosen Recording: Commander Keane, Australian accent, from Wikimedia Commons, CC BY-SA 4.0 Updated