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See more synonyms for baseless on Thesaurus.com
  1. having no base; without foundation; groundless: a baseless claim.
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Origin of baseless

First recorded in 1600–10; base1 + -less
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for baseless

unwarranted, unsubstantiated, gratuitous, unjustified, groundless, flimsy, untenable, unjustifiable, unfounded, unsupported, bottomless, reasonless, unconfirmed, uncorroborated

Examples from the Web for baseless

Contemporary Examples of baseless

Historical Examples of baseless

  • But my fears that their mental suggestions might obsess her were baseless.

    It Happened in Egypt

    C. N. Williamson

  • Pym, all here know you: you'll not set your heart On any baseless dream.

    Browning's England

    Helen Archibald Clarke

  • But Colonel John was not one to give way to fears that might be baseless.

    The Wild Geese

    Stanley John Weyman

  • And like the baseless fabric of a vision, Leave not a rack behind.

    Daily Thoughts

    Charles Kingsley

  • He saw how baseless his hope had been, and he exonerated her from all blame.

    A Spoil of Office

    Hamlin Garland

British Dictionary definitions for baseless


  1. not based on fact; unfoundeda baseless supposition
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Derived Formsbaselessly, adverbbaselessness, 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

Word Origin and History for baseless


c.1600, from base (n.) + -less. Related: Baselessly; baselessness.

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Online Etymology Dictionary, © 2010 Douglas Harper