unpiloted
adjective
                                                                                                                            
                                                            un·pi·lot·ed
                    
                                                                                                              
                                                                                                                                  ˌən-ˈpī-lə-təd  
                                                      
                                                          
            
                                
              
          
                                                      : having no pilot on board                                      
              
                             
an unpiloted aircraft/flight
                                       They argue that the future belongs to unpiloted submersibles …— David Malakoff
David Malakoff
                         
                
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  Merriam-Webster unabridged




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