• WordNet 3.6
    • adj ruthless without mercy or pity "an act of ruthless ferocity","a monster of remorseless cruelty"
    • ***
Webster's Revised Unabridged Dictionary
    • a Ruthless Having no ruth; cruel; pitiless. "Their rage the hostile bands restrain,
      All but the ruthless monarch of the main."
    • ***
Century Dictionary and Cyclopedia
    • ruthless Having no ruth or pity; cruel; pitiless; barbarous; insensible to the miseries of others.
    • ruthless Unmodified or unrestrained by pity; marked by unfaltering rigor; relentless; merciless: as, ruthless severity.
    • ruthless Synonyms Unpitying, hard-hearted.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Ruthless without pity: insensible to misery: cruel
    • ***


  • Nigel Short
    Nigel Short
    “Chess is ruthless: you've got to be prepared to kill people.”
  • Sigmund Freud
    “Children are completely egoistic; they feel their needs intensely and strive ruthlessly to satisfy them.”
  • Dorothy Parker
    “I require three things in a man. He must be handsome, ruthless, and stupid.”


Chambers's Twentieth Century Dictionary
M. E. ruthe, reuth—Scand.; Ice. hryggth, hrygth, sorrow.


In literature:

It came swiftly, ruthlessly.
"The Triumph of John Kars" by Ridgwell Cullum
But the mother, in the ruthless unbearableness of her pain, wanted something done, anything.
"The Emigrant Trail" by Geraldine Bonner
Therefore, I am ruthlessly called Twitter at times by my friends, and more often Twitter-or-Tweet.
"The She Boss" by Arthur Preston Hankins
Germany by her ruthless submarine warfare brought desolation to many American homes.
"Kelly Miller's History of the World War for Human Rights" by Kelly Miller
Numbed with the cold, terrified at the elemental ruthlessness of it all, she threw herself on the bed, denied even the relief of tears.
"North of Fifty-Three" by Bertrand W. Sinclair
A very successful but ruthless buccaneer.
"The Pirates' Who's Who" by Philip Gosse
Already the three were turning away from the man so ruthlessly dispatched.
"Key Out of Time" by Andre Alice Norton
Fourthly, come the submarines, those sneaky vipers of the sea that seem made on purpose for the underhand tricks of ruthless Germans.
"Flag and Fleet" by William Wood
The harsh and unsentimental logic of reality is emphasized with a ruthless disregard of rose-colored traditions.
"Essays on Scandinavian Literature" by Hjalmar Hjorth Boyesen
Its ruthlessness made him feel ruthless.
"The Call of the Blood" by Robert Smythe Hichens

In poetry:

Has the slanderer's tongue unsparing
Ruthless tarnished with its stain;
Was your good name worth the wearing--
Go and win it back again.
"Light Beyond" by Madge Morris Wagner
Tis the tornado's ruthless blast;
The mother stunn'd, the babe it bears
Far from her senseless frame! aghast
The maid, in speechless horror glares!
"The Swan" by William Hayley
Dire were the horrors of that ruthless storm,
That for young Lycid form'd a wat'ry grave;
Oh! many wept to see his fainting form
Unaided sink beneath th' o'erwhelming wave.
"Lines To The Memory Of An Amiable Youth Of Great Promise" by Sir John Carr
And Innse's sons, the three, the brave,
From lands far hidden by the wave:
I killed them for thee, who oppressest me sore;
Hard died they, O ruthless one, washed in their gore!
"The Death Of The Boar" by John Douglas Sutherland Campbell
Soon the maples, soon will the glowing birches,
Stripped of all that summer and love had dowered them,
Dream, sad-limbed, beholding their pomp and treasure
Ruthlessly scattered:
"Sapphics" by Archibald Lampman
Whose was the hand that painted thee, O Death!
In the false aspect of a ruthless foe,
Despair and sorrow waiting on thy breath —
O gentle Power! who could have wronged thee so?
"Hymn - Consecration of Magnolia Cemetery" by Henry Timrod

In news:

Brigitte StelzerColumbia must boot Sheherazad Jaafari — seen here on the Upper East Side — over her ties to ruthless dictator Bashar al-Assad, Syrian rights groups are demanding.
Hey, give greedy, ruthless people a break.
Toothless & ruthless is right.
Items tagged with Ruthless .
From left, Julia Goodwin, Suzanne Tiffault and Adrienne Foster in the Talent Company's Ruthless .
So it is with the legendary spoof Ruthless , which takes aim at four shows as well as some bedrock conventions.
The Musical" is a train wreck of bad behavior, but if you're the kind of person who likes to slow down to see the crash, " Ruthless ".
Ruthless Came the Stager.
Just released this week is Ruthless Rye IPA is the newest seasonal selection from Sierra Nevada Brewing Co. And the reviews for have been great, with a Beer Rate overall score of 96 and a style score of 99.
Ruthless Chelsea fires coach Roberto Di Matteo.
"The Rotten Adventures of Zachary Ruthless " by Allan Woodrow.
The Old Fishing Hole broadcast this weekend on KSEN/K 96 can't be called ruthless .
Ruthless cartel leader apparently killed in Mexico.
An urgent virtue in a ruthless world.
Use ' ruthless compassion' when firing customers.

In science:

Metaphysics, philosophy, epistemology, questions about the meaning and value of human life must all be ruthlessly excluded from science, according to SE, to preserve its rationality, its intellectual integrity.
Do We Need a Scientific Revolution?
And yet this strategy of pushing the ideas ruthlessly as far as they can go always produced interesting results.
Overview and Outlook
You cannot have them all, and we are ruthless in noting only: 175 the age of Harriet the tortoise at the time of her death in an Australian zoo (Anonymous 2005d). 170 the estimated IQ of John Quincy Adams (Simonton 2006), at the top of the presidential pack.
Astrophysics in 2006
Fits were done manually by ruthlessly rejecting outliers while maintaining even coverage over the field. A combined bad pixel mask was made for all cosmic rays(CR), hot pixels, and satellite trails for each image using craverage and masking by hand.
The IRAC Dark Field; Far- Infrared to X-ray Data
The large size of our runs allowed a ruthless attitude to finite size effects: we use no data with L > Λ/4, with Λ the linear system size.
3D Spinodal Decomposition in the Inertial Regime