• WordNet 3.6
    • adj untiring characterized by hard work and perseverance
    • ***
Chambers's Twentieth Century Dictionary
    • adj Untiring un-tīr′ing unwearied
    • ***


In literature:

At five o'clock, a stealthy whisper went the rounds, reaching the ear of every vagabond and cutthroat engaged in the untiring vigil.
"Truxton King" by George Barr McCutcheon
By such untiring energy did he assure victory.
"The Life of Napoleon I (Volumes, 1 and 2)" by John Holland Rose
He is dauntless, untiring, in his efforts.
"What All The World's A-Seeking" by Ralph Waldo Trine
Though many helped, this log was largely the work of Pennell, who was an untiring and exact observer.
"The Worst Journey in the World, Volumes 1 and 2" by Apsley Cherry-Garrard
He was untiring in good works; the poor adored him, the well-to-do honoured him.
"Punch, or the London Charivari, Vol. 102, April 16, 1892" by Various
The West is a cleaner country now, thanks to the untiring efforts of the police.
"The Story of the Foss River Ranch" by Ridgwell Cullum
Only a born engineer and organizer of untiring energy and illimitable patience could have performed so herculean a labor.
"Mr. Fortescue" by William Westall
By untiring effort, he revived and recruited his party.
"Continental Monthly, Vol. I., No. IV., April, 1862" by Various
The action that most children develop through exercise of limb had been reserved for his untiring tongue.
"Sea and Shore" by Mrs. Catharine A. Warfield
The rough driving coat which he had thrown off revealed a slender figure with the bowed shoulders of an untiring scholar.
"A Country Doctor and Selected Stories and Sketches" by Sarah Orne Jewett

In poetry:

From a distant Eastern island
Had the precious wood been brought
Day and night the anxious master
At his toil untiring wrought;
"By The Fireside : Gaspar Becerra" by Henry Wadsworth Longfellow
Here virtuous dames with busy hand,
Untiring do what should be done,
And sons and fathers till the land,
And to each manly duty run.
"Kelvin" by Thomas Frederick Young
Teachers,--she is not here
With the first breath of Spring
Her aid to your devoted band
With cheering smile and ready hand
Untiringly to bring.
"Miss Emily B. Parish," by Lydia Howard Huntley Sigourney
Thy work is done, and well:
Thou hast borne burdens, and may take thy rest,
Pillow thy head on time's untired breast.
Illustrious year, farewell!
"To The Old Year—1865" by Mary Baker Eddy
Time claims his tribute; silence now golden;
Let me not vex the too long suffering lyre;
Though to your love untiring still beholden,
The curfew tells me— cover up the fire.
"The Iron Gate" by Oliver Wendell Holmes
Think on th' eternal home,
The Saviour left for you;
Think on the Lord most holy, come
To dwell with hearts untrue:
So shall ye tread untired His pastoral ways,
And in the darkness sing your carol of high praise.
"Christmas Day" by John Keble

In news:

But in his spirited efforts, his untiring determination to achieve just ends, most of us can find something admirably Yankee in the conviction and drive this native German exhibits in going up against established authority.
While enduring more than her share of personal misfortunes, Maud Cuney-Hare showed a love of music and the theatrical arts, and an untiring dedication to uplifting her race.
Pauling , a brilliant chemist and an untiring political activist who received one Nobel Prize for chemistry and another for peace, died on Friday at his ranch in the Big Sur area of Northern California.

In science:

Acknowledgement: The authors would like to thank their advisor Professor Subhamoy Maitra of Applied Statistics Unit, Indian Statistical Institute, for numerous technical discussions and untiring support throughout the pro ject.
Extension of Stanley's Theorem for Partitions