from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Deficient in or lacking blood.
  • adjective Pale and anemic in color.
  • adjective Achieved without bloodshed.
  • adjective Lacking vivacity or spirit.
  • adjective Devoid of human emotion or feeling.

from The Century Dictionary.

  • Without blood; drained of blood; dead from loss of blood.
  • Pale or colorless from defect of blood; pallid: as, bloodless lips.
  • Free from bloodshed; unattended by blood: as, a bloodless victory; “with bloodless stroke,”
  • Without spirit or energy.
  • Cold-hearted: as, bloodless charity or ceremony.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Destitute of blood, or apparently so; ; lifeless; dead.
  • adjective Not attended with shedding of blood, or slaughter.
  • adjective Without spirit or activity.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Lacking blood; ashen, anaemic.
  • adjective Taking place without loss of blood.
  • adjective Lacking emotion, passion or vivacity.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective destitute of blood or apparently so
  • adjective devoid of human emotion or feeling
  • adjective without vigor or zest or energy
  • adjective anemic looking from illness or emotion
  • adjective free from blood or bloodshed


from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English blodles, from Old English blōdlēas ("bloodless"), equivalent to blood +‎ -less. Cognate with Dutch bloedeloos ("bloodless"), German blutlos ("bloodless"), Danish blodløs ("bloodless"), Swedish blodlös ("bloodless"), Icelandic blóðlaus ("bloodless").


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  • In A Taste of Armageddon, Kirk and crew actively destroy the systems that allow the planet to engage in bloodless wars.

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  • Rome, pick up Prince Charles, put him on the magic carpet, fly to London, clap the Cap of Darkness on him so that nobody can see him, set him down on the throne of his fathers; pick up the Elector, carry him over to his beloved Hanover, and the trick is done -- what they call a bloodless revolution in the history books. "

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  • However, a rueful subordinate describes him as "bloodless" - and, certainly, his fame as the late John Paul II's "enforcer" was not unearned.

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  • Fortunately for Fodor, Egier was able to suggest a third option -- so-called bloodless surgery using an experimental blood substitute called Hemolink.

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  • HARRIS: On the streets of Bangkok, relatively quiet today after what's being called a bloodless coup in Thailand.

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