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[ground-lis] /ˈgraʊnd lɪs/
without rational basis:
groundless fears.
Origin of groundless
before 900; Middle English: bottomless, unfathomable; Old English grundlēas. See ground1, -less
Related forms
groundlessly, adverb
groundlessness, noun
baseless, unfounded, unjustified, idle. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for groundless
Contemporary Examples
Historical Examples
  • Ignore, therefore, the groundless suspicion that you sin by obeying, and walk confidently in this path exempt from danger.

    Light and Peace Carlo Giuseppe Quadrupani
  • It was only an inkling, vague and groundless, and he felt that it would do no good to speak of it.

    Teddy: Her Book Anna Chapin Ray
  • Clayton felt that he could not stir up in the heart of this man a useless, peace-destroying, and perhaps a groundless, distrust.

    Justin Wingate, Ranchman John H. Whitson
  • My fears that he might be an agent of the Sûreté were groundless.

    The Golden Face William Le Queux
  • Captain Dan's fears concerning the safety of his showcases were groundless.

    Cap'n Dan's Daughter Joseph C. Lincoln
  • The sequel is not likely to have convinced him that his apprehensions were groundless.

    Lord John Russell Stuart J. Reid
  • He told her how groundless were her fears; that a protecting Providence watched over them, and they would not be harmed.

British Dictionary definitions for groundless


without reason or justification: his suspicions were groundless
Derived Forms
groundlessly, adverb
groundlessness, 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 groundless

Old English grundleas "bottomless, unfathomable, vast;" see ground (n.) + -less. Figurative sense of "unfathomable" is from early 14c. Related: Groundlessly; groundlessness.

Online Etymology Dictionary, © 2010 Douglas Harper
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