American English

Definition of doubtless adverb from the Oxford Advanced American Dictionary

     

    doubtless

     adverb
    adverb
    NAmE//ˈdaʊtləs//
     
    (doubtlessly)
     
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  1. 1almost certainly synonym without doubt
  2. 2 He would doubtless disapprove of what Kelly was doing. Doubtless Williams, as the star of the movie, is getting five times the salary of everyone else.
See the Oxford Advanced Learner's Dictionary entry: doubtless