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[mahynd-lis] /ˈmaɪnd lɪs/
without intelligence; senseless:
a mindless creature.
unmindful or heedless:
mindless of all dangers.
Origin of mindless
before 1000; Middle English myndles, Old English gemyndlēas. See mind, -less
Related forms
mindlessly, adverb
mindlessness, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for mindless
Contemporary Examples
Historical Examples
  • Or would the planet revert to a primeval state of mindless innocence?

    The Most Sentimental Man Evelyn E. Smith
  • After all, the Gods didn't expect their worshippers to be mindless slaves.

    Pagan Passions Gordon Randall Garrett
  • As it is—what man would have her to bear him mindless brats?

    Nicanor - Teller of Tales C. Bryson Taylor
  • They now serve the Schrees, for they are mindless, in a way.

    Valley of the Croen Lee Tarbell
  • "I have heard that the first-born were mindless," said Finnian.

    Irish Fairy Tales James Stephens
British Dictionary definitions for mindless


stupid or careless
requiring little or no intellectual effort: a mindless task
Derived Forms
mindlessly, adverb
mindlessness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for mindless

c.1400, "unmindful, heedless, negligent," from mind (n.) + -less. Related: Mindlessly; mindlessness. Old English had myndleas "foolish, senseless."

Online Etymology Dictionary, © 2010 Douglas Harper
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