American English

Definition of groundless adjective from the Oxford Advanced American Dictionary

     

    groundless

     adjective
    adjective
    NAmE//ˈɡraʊndləs//
     
     
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  1. 1not based on reason or evidence synonym unfounded
  2. 2 groundless allegations Our fears proved groundless. Their suspicions were dismissed as groundless.
groundlessly
 
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adverb
See the Oxford Advanced Learner's Dictionary entry: groundless