INDEFATIGABLE

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 Dictionary entry overview: What does indefatigable mean? 

• INDEFATIGABLE (adjective)
  The adjective INDEFATIGABLE has 1 sense:

1. showing sustained enthusiastic action with unflagging vitality

  Familiarity information: INDEFATIGABLE used as an adjective is very rare.

 Dictionary entry details 

• INDEFATIGABLE (adjective)

Sense 1

Meaning:

Showing sustained enthusiastic action with unflagging vitality

Synonyms:

indefatigable; tireless; unflagging; unwearying

Context example:

unflagging pursuit of excellence

Similar:

energetic (possessing or exerting or displaying energy)

Derivation:

indefatigability; indefatigableness (tireless determination)

 Context examples 

Then he was absolutely untiring and indefatigable.

(The Memoirs of Sherlock Holmes, by Sir Arthur Conan Doyle)

A more resolute, indefatigable pioneer never wrought amidst rocks and dangers.

(Jane Eyre, by Charlotte Brontë)

He was respected by all who knew him for his integrity and indefatigable attention to public business.

(Frankenstein, by Mary Wollstonecraft Shelley)

I heard him as I came upstairs, and the theatre is engaged of course by those indefatigable rehearsers, Agatha and Frederick.

(Mansfield Park, by Jane Austen)

They were carefully examined, and showed that he was a keen student of international politics, an indefatigable gossip, a remarkable linguist, and an untiring letter writer.

(The Return of Sherlock Holmes, by Sir Arthur Conan Doyle)

The most indefatigable, true friend.

(Emma, by Jane Austen)

Mrs. Dashwood remained at Norland several months; not from any disinclination to move when the sight of every well known spot ceased to raise the violent emotion which it produced for a while; for when her spirits began to revive, and her mind became capable of some other exertion than that of heightening its affliction by melancholy remembrances, she was impatient to be gone, and indefatigable in her inquiries for a suitable dwelling in the neighbourhood of Norland; for to remove far from that beloved spot was impossible.

(Sense and Sensibility, by Jane Austen)

The indefatigable bell now sounded for the fourth time: the classes were marshalled and marched into another room to breakfast: how glad I was to behold a prospect of getting something to eat!

(Jane Eyre, by Charlotte Brontë)

He said that These were men to whose indefatigable zeal modern philosophers were indebted for most of the foundations of their knowledge.

(Frankenstein, by Mary Wollstonecraft Shelley)

Your kindness and patience can never be forgotten, your indefatigable patience in trying to make it possible for him to learn his part—in trying to give him a brain which nature had denied—to mix up an understanding for him out of the superfluity of your own!

(Mansfield Park, by Jane Austen)