noncommunicative
adjective
                                                                                                                            
                                                            non·com·mu·ni·ca·tive
                    
                                                                                                              
                                                                                                                                  ˌnän-kə-ˈmyü-nə-ˌkā-tiv  
                                                                                                                              
            -ni-kə-tiv
                                                      
                                                          
                                
              
          
                                                      : not communicative:                                      
                
                    
        a
    
          
                                          
              
          
                                                      : unable or not tending to communicate information, thoughts, or feelings                                      
              
                             
a noncommunicative patient
                                       a shy, noncommunicative [=uncommunicative] person
                         
                
                    
        b
    
          
                                          
              
          
                                                      : not of or relating to communication                                      
              
                             
noncommunicative gestures
                         
                
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  Merriam-Webster unabridged




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