Definition of ultimately adverb from the Oxford Advanced American Dictionary

        

    ultimately

     adverb
    adverb
    NAmE//ˈʌltəmətli//
     
     
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  1. 1in the end; finally Ultimately, you'll have to make the decision yourself. A poor diet will ultimately lead to illness.
  2. 2at the most basic and important level All life depends ultimately on oxygen.
See the Oxford Advanced Learner's Dictionary entry: ultimately