William Godwin

During my academical life, and from this time forward, I was indefatigable in my search after truth. I read all the authors of greatest repute, for and against the Trinity, original sin, and the most disputed doctrines, but I was not yet of an understanding sufficiently ripe for impartial decision, and all my inquiries terminated in Calvinism.

English Writer

Rick Perlstein

Prediction is structurally inseparable from the business of punditry: It creates the essential image of indefatigable authority that is punditry's very architecture; it flows from that calcified image, and it provides the substance for the story that keeps getting told about the inevitability of American progress.

American Historian

John Bigelow

Of your own indefatigable labor from early dawn and of your explicit instructions, that the batteries should reserve their ammunition, until the grand charge should commence, for which the enemy were undoubtedly preparing.

American Lawyer

William H. Wharton

Who of us is able to read and understand and be entirely confident of the validity of his title to the land he lives on, and which he has redeemed from a state of nature by the most indefatigable industry and perseverance?

American Politician

Rachel Cusk

Hope is like one of those orchids that grows around toxic waste: lovely in itself - and an assertion, if you like, of indefatigable good - but a sure sign that something nasty lies underneath.

Canadian Novelist

Paul Tudor Jones

The secret to being successful from a trading perspective is to have an indefatigable and an undying and unquenchable thirst for information and knowledge.

American Businessman

Kiran Bedi

I joined the Indian Police Service as a tough woman, a woman with indefatigable stamina, because I used to run for my tennis titles, etc.

Indian Activist

Samina Baig

My most cherished desire is to help our women come out of their routine chores and infuse in them the indefatigable spirit of adventure.

Pakistani Athlete

Zeenat Aman

Dev sahab was indefatigable. Till the end, he believed in what he did.

Indian Actress

Margery Allingham

The optimism of a healthy mind is indefatigable.

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

Positive Connotation

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

Intensity Emphasized

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

Academic Tone

 and here I was with a tennis racket and going to school and doing all kinds of extracurricular activities. I thought I must tell you this. Why I said this, is the background. This is what comes next. I joined the Indian Police Service as a tough woman, a woman with indefatigable stamina,

Kiran Bedi: How I remade...

 but that is of no consequence she's so bloated with egg-producing machinery that she couldn't move even if she wanted to and her eggs as she produces them are carried away to the nurseries by the attentive and indefatigable workers

Fascinating Termite...

 indefatigable sniffers they have no boundaries is it the rush rush leaping up wherever they can taking in the smells signaling the trainer when one is found no video le muchos a