American English

Definition of unmanned adjective from the Oxford Advanced American Dictionary

     

    unmanned

     adjective
    adjective
    NAmE//ʌnˈmænd//
     
     
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  1. 1if a machine, a vehicle, a place, or an activity is unmanned, it does not have or need a person to control or operate it opposite manned
  2. 2 an unmanned spacecraft an unmanned Mars mission
See the Oxford Advanced Learner's Dictionary entry: unmanned