Indefatigable

usgb/ˌɪndɪˈfætɪɡəbl/
adjective

Someone who never gets tired of doing something.

She was an indefatigable advocate for the disadvantaged.
Visual representation of "indefatigable" - Someone who never gets tired of doing something

Often appears as...

  • indefatigable worker
  • indefatigable spirit

Usage tips

Formal

Academic

Definition 1 of 1
Visual representation of "indefatigable"
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Positive Connotation

Indefatigable is positive and suggests admirable persistence and energy in continuing activities.

Illustration for Positive Connotation
Her indefatigable pursuit of justice impressed everyone.
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Intensity Emphasized

Use 'indefatigable' to express a very high level of energy or effort, more than 'hardworking'.

Illustration for Intensity Emphasized
The volunteers showed an indefatigable commitment to the cause.
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Academic Tone

'Indefatigable' fits well in formal or academic writing, adding sophistication to the text.

Illustration for Academic Tone
His indefatigable research greatly contributed to the field.
Word comparison image

Compare with

determineenergeticflagindustriousperseverantpersistentrelentlesstireless
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Visual representation of the word "Indefatigable"

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